Marks: 50
I. Rohith can catch either the harbour line train or main line train from his nearest railway station kandala to reach his office. Both the trains have a frequency of 10 min. In the morning office hours.the harbour line trains arrive evary 10min. Starting from 5:00a.m.
And the main line trains arrive at every 10min. Starting from 5:02a.m
Ii. In a certain department store the position of buyer,cashier,clerk
, floorwalkar, & manager are held, though not necessarily respectively ,by m$
The cashier & the manager were roommates in college.the buyer is bachelor,
Evans & miss ames have only business contacts with each other mrs conroy was greatly dosappointed when her husband told her that themanager had refuge to give him a raise. Davis is going to be the best man when the clerk & the cashier are married . What position does each person held.?
Iii.tanveer and kunal went down a descending escalator . The escalator
Was going down at a contant speed . Kunal walked down the steps and
Had to cover 50 steps to reach the bottom.tanveer on the other hand , ran
Down the steps of the escalator and hence had to take 75 steps to reach
The bottom . Actually , tanveer took 3 steps in the same time it took
Kunal to take 1 step . How many steps would be visible when the ecalator
Is stopped and not operating.?
iv. In a four team foot-ball tournament , all the teams played each
Other in three rounds of matches are shown in the table -a . Some of
The results of the tournament are shown in the table _b . Using the
Clues given below, please fill -in the blank columns in the result
Table-b (goals for & goals for against ? ).
note : two points for win , one point for draw & zero points for
Defeat are awarded .
clues :
1. East zone won the tournament despite scoring one less goal than the runners -up.
2. North zone scored an odd number of goals in their first round game
3. South zone , who failed to score in their final match , were beaten
by a two -goal margin in the first round.
4. East zone lost their match aginst west zone.
5. All four teams scored goals in the second round matches
6. West zone scored the same number of goals against east zone as northzone scored aginst them.
7. East zone scored four goals in round two match.
table - a ( matches played )
~~~~~~~~~~~~~~~~~~~~
round 1 north zone vs south zone
west zone vs east zone.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
round 2 south zone vs west zone
east zone vs north zone
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
round 3 south zone vs east zone
west zone vs north zone
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
table - b ( results )
~~~~~~~~~~~~~~~~~~~~~~~~~
played won draw lost golas for goals
Points
against
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
$
east zone 3 - - - ? 3
4
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
north zone 3 - - - ? ?
4
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
west zone 3 - - - 4 3
3
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
south zone 3 - - - 2 5
1
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
v.
at six o'clock the wall clock struck 6 times . Checking with my
Watch
, i noticed that the time between the first & last strokes was 30
Seconds
. How long will the clock take to stike 12 at mid night (ans 66
Seconds)
vi. Please answer the q's with reference to the facts given below ( 8 marks )
1 . The members of a certain tribe are divided into three castes
-abhor
, dravid , & magar castes
2. An abhor women cannot marry a dravid man
3. A magar man cannot marry a dravid women.
4. A son takes the caste of his father , a daughter takes the
Caste of
her mother .
5. All marriages except those mentiond above are permitted
6 . There are no children born out of wed lock.
q's
1) an abhor woman marries and has three children , all of whom are
Member$
i) if she were to be married to a magar man , they have
No male$
ii) if she were to be married to abhor man ,they may have
Male chi$
iii) if her fourth child is male , he may be a dravid,.
a) i only
b) iii only
c) i & ii only
d) ii & iii only
e) i , ii & iii
2) it can be inferred from the condition described that a magar man
i) cannot have a dravid grand mother
ii) cannot have a dravid mother
iii ) may have a abhor mother
a) i only
b) ii only
c) i & ii only
d) ii & iii only
e) i , ii & iii
3) when two dravids are married , it is impossible for them to have
i) any female abhor descendents
ii ) an abhor great_ grand daughter \
iii) an abhor grand daughter
a)i only
b) iii only
c) i & ii only
d) ii & iii only
e) i , ii & iii
4) an abhor woman
a)can have a dravid grandson
b) cannot have a magar son
c) cannot have a magar grand son
d) can have a magar daughter -in - law
e) cannot have a dravid grand daughter
vii. ( 2 marks )
in certain community there are thousand married couples .
Two
thirds of the husbands who are taller than their wives are also
Heavier
and three quarters of the husbands who are heavier than their wives
Are
also taller . If there are 120 wives who are taller and heavier
Than their
husbands, how many husbands are taller and heavier than their wives
?
viii. Both the gupthas and sinhas have two young sons whose ages are
ander eleven. The names of the boys, whose ages roundedoff to
The
nearest year are all different, are rajesh, praveen,lalith and
Prathap.
taking the ages of the ages of the boys only to the nearest
Year, the
following statements are true.
rajesh is three years younger than his brother is.
praveen is the oldest.
prathap is 5yrs older than the younger sinhas boy.
lalith is half as old as one of the guptha boys.
the total ages of the boys in each family differ by the
Same
amount today as they did five years ago. --- 7 marks.
ix. A long division sum ---- 7 marks
xx)xxxxxxxxx(xxxxxxx
xx
---
xxx
xx
----
xxx
xx
---
xx
xx
--
xxx
xxx
-----
in the complete solution there are four 5's.
find the missing digits.
x. Following services are operated by asian airlines between the two
are located in different countries with different time zones.
As is
is normally done, the time shown is the local time- viz ist
& tst.
regular flight supersonicflig
arrive alexandria 17:10 tst 15:40 tst
depart " " 20:50 tst 22:50 tst
arrive rampur 23:40 ist ? Ist
the arrival time of supersonic flight into rampur from
Alexandr$
arrival time of the super sonic flight assuming each
Service-
regular and supersonic maintains its own constant speed
Of flig$
don't answer for all the puzzles. 8 are the safe one.
PART 1
1). A begger collects cigarette stubs and makes one full cigarette
with every 7 stubs. Once he gets 49 stubs . How many cigarettes
can he smoke totally.
Ans. 8
2). A soldier looses his way in a thick jungle at random walks
from his camp but mathematically in an interesting fashion.
First he walks one mile east then half mile to north. Then 1/4
mile to west, then 1/8 mile to south and so on making a loop.
Finally hoe far he is from his camp and in which direction.
ans: in north and south directions
1/2 - 1/8 + 1/32 - 1/128 + 1/512 - and so on
= 1/2/((1-(-1/4))
similarly in east and west directions
1- 1/4 + 1/16 - 1/64 + 1/256 - and so on
= 1/(( 1- ( - 1/4))
add both the answers
3). hoe 1000000000 can be written as a product of two factors
neither of them containing zeros
Ans 2 power 9 x 5 ppower 9 ( check the answer )
4). Conversation between two mathematcians:
first : I have three childern. Thew pproduct of their ages is 36
. If you sum their ages . it is exactly same as my neighbour's
door number on my left. The sacond mathematiciaan verfies the
door number and says that the not sufficient . Then the first
says " o.k one more clue is that my youngest is the youngest"
Immmediately the second mathematician answers . Can you aanswer
the questoion asked by the first mathematician?
What are the childeren ages? ans 2 and 3 and 6
5). Light glows for every 13 seconds . How many times did it
between 1:57:58 and 3:20:47 am
ans : 383 + 1 = 384
6). 500 men are arranged in an array of 10 rows and 50 columns .
ALL tallest among each row aare asked to fall out . And the
shortest among THEM is A. Similarly after resuming that to their
originaal podsitions that the shorteest among each column are
asked to fall out. And the longest among them is B . Now who is
taller among A and B ?
ans A
7). A person spending out 1/3 for cloths , 1/5 of the remsaining
for food and 1/4 of the remaining for travelles is left with
Rs 100/- . How he had in the begining ?
ans RS 250/-
8). there are six boxes containing 5 , 7 , 14 , 16 , 18 , 29
balls of either red or blue in colour. Some boxes contain only
red balls and others contain only blue . One sales man sold one
box out of them and then he says " I have the same number of red
balls left out as that of blue ". Which box is the one he solds
out ?
Ans : total no of balls = 89 and (89-29 /2 = 60/2 = 30
and also 14 + 16 = 5 + 7 + 18 = 30
9). A chain is broken into three pieces of equal lenths
conttaining 3 links each. It is taken to a backsmith to join into
a single continuous one . How many links are to tobe opened to
make it ?
Ans : 2.
10). Grass in lawn grows equally thickand in a uniform rate. It
takes 24 days for 70 cows and 60 for 30 cows . How many cows can
eat away the same in 96 days.?
Ans : 18 or 19
11). There is a certain four digit number whose fourth digit is
twise the first digit.
Third digit is three more than second digit.
Sum of the first and fourth digits twise the third number.
What was that number ?
Ans : 2034 and 4368
If you qualify in the first part then you have to appear for
the second i.e the following part.
Part 2.
1. From a vessel on the first day, 1/3rd of the liquid
evaporates. On the second day 3/4th of the remaining liquid
evaporates. what fraction of the volume is present at the end of
the II day.
2. an orange galss has orange juice. and white glass has apple
juice. Bothe equal volume 50ml of the orange juice is taken and
poured into the apple juice. 50ml from the white glass is poured
into the orange glass. Of the two quantities, the amount of
apple juice in the orange glass and the amount of orange juice in
the white glass, which one is greater and by how much?
3. there is a 4 inch cube painted on all sides. this is cut
into no of 1 inch cubes. what is the no of cubes which have no
pointed sides.
4. sam and mala have a conversation. sam says i am vertainly not
over 40. mala says i am 38 and you are atleast 5 years older
than me. Now sam says you are atleast 39. all the sattements by
the two are false. How hold are they realy.
5. ram singh goes to his office in the city, every day from his
suburbun house. his driver mangaram drops him at the railway
station in the morning and picks him up in the evening. Every
evening ram singh reaches the station at 5 o'clock. mangaram
also reaches at the same time. one day ramsingh started early
from his office and came to the station at 4 o'clock. not
wanting to wait for the car he starts walking home. Mangaram
starts at normal time, picks him up on the way and takes him back
house, half an hour early. how much time did ram singh walk.
6. in a railway station, there are tow trains going. One in the
harbour line and one in the main line, each having a frequency of
10 minutes. the main line service starts at 5 o'clock. the
harbour line starts at 5.02a.m. a man goes to the station every
day to catch the first train. what is the probability of man
catchinhg the first train
7. some people went for vaction. unfortunately it rained for 13
days when they were there. but whenever it rained in the
morning, they had clean afternood and vice versa. In all they
enjoyed 11 morning and 12 afternoons. how many days did they
stay there totally
8. exalator problem repeat
9. a survey was taken among 100 people to firn their preference
of watching t.v. programmes. there are 3 channels. given no of
people who watch
at least channel 1
" " 2
" " 3
no channels at all
atleast channels 1and 3
" " 1 and 2
" " 2 and 3
find the no of people who watched all three.
10. albert and fernandes they have two leg swimming race. both
start from opposite and of the pool. On the first leg, the boys
pass each other at 18 mt from the deep end of the pool. during
the II leg they pass at 10 mt from the shallow end of the pool.
Both go at const speed. but one of them is faster. each boy
rests for 4 sec to see at the end of the i leg. what is the
length of the pool.
11. T H I S Each alphabet stands for one
I S digit, what is the maximum value T
-------------- can take
X F X X
X X U X
--------------
X X N X X
--------------
1. an escalator is descending at constant speed. A walks down
and takes 50 steps to reach the bottom. B runs down and takes 90
steps in the same time as A takes 10 steps. how many steps are
visible when the escalator is not operating.
2. evvery day a cyclist meets a train at a particular crossing.
the road is straignt before the crossing and both are travelling
in the same direction. cyclist travels with a speed of 10 Kmph.
One day the cyclist comes late by 25 min. and meets the train 5km
before the crossing. what is the seppd of the train.
3. five persons muckerjee, misra, iyer, patil and sharma, all
take then first or middle names in the full names. There are 4
persons having I or middle name of kumar, 3 persons with mohan, 2
persons withdev and 1 anil.
--Either mukherjee and patil have a I orr middle name of dev or
misra and iyer have their I or middle name of dev
--of mukherkjee and misre, either both oof them have a first or
middle name of mohan or neither have a first or middle name of
mohan
--either iyer of sharma has a I or middlle name of kumar hut not
both.
who has the I or middle name of anil
4. reading conprehension
5. a bird keeper has got Ppigeon, M mynas and S sparrows. the
keeper goes for lunch leaving his assistant to watch the birds.
a. suppose p=10, m=5, s=8 when the bird keeper comes back, the
assistant informs the x birds have escaped. the bird keeper
exclaims oh no! all my sparrows are gone. how many birds flew
away.
b. when the bird keeper come back, the assistand told him that
x birds have escaped. the keeper realised that atleast2 sparrows
have escaped. what is minimum no of birds that can escape.
6. select from the five alternatives A,B,C,D,E
AT THE end of each question ,two conditions will be given.
the choices are to filled at follows.
a. if a definete conclusion can be drawn from condition 1
b. if a definete conclusion can be drawn from condition 2
c. if a definete conclusion can be drawn from condition 1 and 2
d. if a definete conclusion can be drawn from condition 1 or 2
e. no conclusion can be drawn using both conditions
1. person 1 says N<5
person says n>5
person 3 says 3N>20
person 4 says 3n>10
person 5 says N<8
whaT IS value of N
a) 1. no of persons who speak false being less than no of persons
who tells the truth.
2. person 2 is telling the truth.
b) 1. no of persong telling the truth is greater than no of
persons telling lies
2. person 5 is telling the truth.
7. there are N coins on a table. there are two players A&B.
you can take 1 or 2 coins at a time. the person who takes the
last coin is the loser. a always starts first
--1. if N=7
a) A can always win by taking two coins in his first chanse
b) B can win only if A takes two coins in his first chance.
c) B can always win by proper play
d) none of the above
--2. A can win by proper play if N is eequal to
a) 13 b) 37 c) 22 d) 34 e) 48 ans. e.
--3. B can win by proper play if N is eqqual to
a) 25 b)26 c) 32 d) 41 e) none
--4. if N<4, can A win by proper play allways
8. Two turns have vertain pecular charcteristics. One of them
always lies on Monday, Wednesday, Friday. \the other always lies
on Tuesdays, thursdays and saturdays. On the other days they tel
the truth. You are given a conversation.
person A-- today is sunday my name is anil
person B-- today is tuesday, my name is bill
answers for selected questions
2. equal 1. 150
3. 8 2. 60 kmph
4. 37(M),41(S) 3. Mukherjee
5. 45 min. 8. today is tuesday
6. 0.8
7. 18
11. T max value = 4
This paper contains INFOSYS interview questions.
=================================================
1> S: Satch J:Jute ANS
person1: Most of us are satch J
person2:Most of us are jute S
person3:Two of us are satch J
person4: Three of us are jute J
person5:I am satch J
we have to find who is satch and who is jute.
2> Four perssons are three to cross a bridge they have one torch light
one person A can cross in 1 min
person B can cross in 2 min
person C can cross in 5 min
person D can cross in 10 min
They have to cross bridge with in 17 min.
At a time only two persons can cross
I A&B ----> 2
II A <----1
III C&D ---->10
IV B <----2
V A&B ---->2
__________
Total 17
3>7 hours hour glass
11 hours hour glass
you have to boil one egg for 15 hours
4> What is the maximum number of slices can you obtain by cutting
a cake with only 4 cuts?
ANS: 16
5> Three are three boxes ,
In one box Two white balls
In two box 2 black balls
In three box 1 white &1 black
The lables on the boxes are not correct.Then you have to open
one box and to find the colour of the balls in all boxes.
Solution: Open the box labled black& white
If white balls are there then the box labled with white balls
contain black balls and labled with black balls contain one
black and one white ball and viceversa if two black ballsare there.
INFOSYS PAPER 1997.
PAPER CODE Q/C.
-------------------------------------------------------------------------
1a) BE * BE = ACB
A,B,C,E ARE NON ZERO NUMBERS FIND B,E.
ANS) B=1 E=9
2) A,B,C,D,E ARE HAVING NUMERICAL VALUES. THERE ARE SOME CONDITIONS
GIVEN
a) A=C <===> B!=E
b) DIFFERENCE BETWEEN A AND C AS SAME AS DIFFERENCE BETWEEN C AND B
AS SAME AS DIFFERENCE BETWEEN A AND D
c) CD
THEN FIND A,B,C,D,E
3) THERE ARE SIX CARDS IN WHICH IT HAS TWO KING CARDS. ALL CARDS ARE
TURNED DOWN AND TWO CARDS ARE OPENED
a) WHAT IS THE POSSOBILITY TO GET AT LEAST ONE KING.
b) WHAT IS THE POSSIBILITY TO GET TWO KINGS.
4) A PERSON WENT TO A SHOP AND ASKED FOR CHANGE FOR 1.15PAISE.
BUT HE SAID THAT HE COULD NOT ONLY GIVE CHANGE FOR ONE RUPEE.
BUT ALSO FOR 50P,25P,10P AND 5P. WHAT WERE THE COINS HE HAD
ans) 1-->50 4--->10P 1--->25P
5) THERE ARE 3 NURSES AND THEY WORK ALTOGETHER ONLY ONCE IN A WEEK.
NO NURSE IS CALLED TO WORK FOR 3 CONSECUTIVE DAYS.
NURSE 1 IS OFF ON TUESEDAY,THURSDAY AND SUNDAY.
NURSE 2 IS OFF ON SATURDAY.
NURSE 3 IS OFF ON THURSDAY,SUNDAY.
NO TWO NURSES ARE OFF MORE THAN ONCE A WEEK.
FIND THE DAY ON WHICH ALL THE 3 NURSES WERE ON WORK.
6) THERE ARE 5 PERSONS A,B,C,D,E AND EACH IS WEARING A BLOCK OR WHITE
CAP ON HIS HEAD. A PERSON CAN SEE THE CAPS OF THE REMAINING 4 BUT CAN'T
SEE HIS OWN CAP. A PERSON WEARING WHITE SAYS TRUE AND WHO WEARS BLOCK
SAYS FALSE.
i) A SAYS I SEE 3 WHITES AND 1 BLOCK
ii) B SAYS I SEE 4 BLOCKS
iii) E SAYS I SEE 4 WHITES
iiii) C SAYS I SEE 3 BLOCKS AND 1 WHITE.
NOW FIND THE CAPS WEARED BY A,B,C,D AND E
7) THERE ARE TWO WOMEN, KAVITHA AND SHAMILI AND TWO MALES SHYAM, ARAVIND
WHO ARE MUSICIANS. OUT OF THESE FOUR ONE IS A PIANIST, ONE FLUTIST,
VIOLINIST AND DRUMMER.
i) ACROSS ARAVIND BEATS PIANIST
ii) ACROSS SHYAM IS NOT A FLUTIST
iii) KAVITHA'S LEFT IS A PIANIST
iiii) SHAMILI'S LEFT IS NOT A DRUMMER
V) FLUTIST AND DRUMMER ARE MARRIED.
8) 1/3 ED OF THE CONTENTS OF A CONTAINER EVAPORATED ON THE 1 ST DAY.
3/4 TH OF THE REMAINING CONTENTS OF THE CONTAINER EVAPORATED THE
SECOND DAY. WHAT PART OF THE CONTENTS OF THE CONTAINER ARE LEFT AT
THE END OF THE SECOND DAY.
9) A MAN COVERED 28 STEPS IN 30 SECONDS BUT HE DECIDED TO MOVE FAST AND
COVERED 34 STEPS IN 18 SECONDS. HOW MANY STEPS ARE THERE ON THE
ESCALATOR WHEN STATIONARY.
10) ALL FAIR SKINNED, RICH, HANDSOME, MUSCULAR, LEAN AND EMPLOYED ARE
TALL MEN
1) ALL LEAN MEN ARE MUSCULAR.
2) NO FAIRSKINNED PERSON WHO IS NOT RICH IS HANDSOME.
3) SOME MUSCULAR MEN ARE HANDSOME.
4) ALL HANDSOME ARE FAIRSKINNED.
5) NO PERSON WHO IS NEITHER FAIR SKINNED NOR MUSCULAR IS ENPLYED.
6) we unable to recall this condition and question also incomplete.
-------------------------------------------------------------------------
INFOSYS 1997. TIME 1hr.
PAPER CODE Q/A. marks 50.
---------------------------------------------------------------
1)At 6'o clock clock ticks 6 times. The time between first and
last ticks was 30sec. How much time it takes at 12'o clock.
Ans. 66 sec. 2 marks.
2)Three friends divided some bullets equally. After all of them
shot 4 bullets the total no.of remaining bullets is equal to that of
one has after division. Find the original number divided.
Ans. x x x
x-4 x-4 x-4
3x-12 = x
x= 6
ans is 18 2 marks
3)A ship went on a voyage after 180 miles a plane statrted with 10 times
speed that of the ship. Find the distance when they meet from
starting point.
Ans. 180 + (x/10) = x
x = 20
ans is 180+20=200miles. 2 marks
4) Fill the empty slots.
Three FOOTBALL teams are there. Given below the list of maches.
played won lost draw Goals for Goals against
A 2 2 *0 *0 *7 1
B 2 *0 *1 1 2 4
C 2 *0 *1 *1 3 7
the slots with stars are answers. 4 marks
BC drew with 2-2
A won on B by 2-0
a won on C by 5-1
( YOU HAVE TO FILL THE BLANKS AT APPROPRIATE STAR SYMBOLS.)`
5) There are 3 societies a,b,c. a lent tractors to b and c as many
as they had. After some time b gave as many tractors to a and c
as many as they have. After sometime c did the same thing.
At the end of this transaction each one of them had 24.
Find the tractors each orginally had.
Ans a had 39, b had 21, c had 12, 4 marks
6) There N stations on a railroad. After adding x stations 46 additional
tickets have to be printed. Find N and X.
Ans. let N(N-1) = t;
(N+x)(N+x-1) = t+46;
trail and error method x=2 and N=11 4 marks
7)Given that April 1 is tuesday. a,b,c are 3 persons told that their
farewell party was on
a - may 8, thursday
b - may 10,tuesday
c - june 8, friday
Out of a,b,c one is only correct one of the regarding month,day,date.
Other told two correct and the third person told all wrong.What is
correct date,month,day. 5 marks
(ans may be MAY 10 SUNDAY. check once again)
8)There are 4 parties. df,gs,dl(depositloss),ew ran for a contest.
Anup,Sujit,John made the following statements regarding results.
Anup said either df or ew will definitely win
sujit said he is confident that df will not win
John said he is confident that neither ew nor dl will win
the result has come. only one of the above three has made a correct
statement. Who has made the correct statement and who has won
the contest. 5 marks.
(ans DL )
9)Five people a,b,c,d,e are related to each other. Four of them make
one true statement each as follows.
i) b is my father's brother. (ans. d said this)
ii)e is my mother-in-law. ( b )
iii)c is my son-in-law's brother. ( e )
iv)a is my brother's wife. ( c )
who said each statement.
10 marks.
10) All members of d are also members of a
All '' e '' d
all '' c '' both a and b
not all '' a are members of d
not all '' d '' e
Some questions on these conditions.(5questions 5 marks)
11)
boys are allowed to watch football at c.v.Raman auditorium subjected to
conditions.
i)the boy over age 16 can wear overcoat
ii)no boy over age 15 can wear cap
iii)to watch the football either he has to wear overcoat or cap
or both
iv) a boy with an umberella or above 16 or both cannot wear sweater.
v) boys must either not watch football or wear sweater.
What is the appearence of the boy who is watching football.
Try to solve this question................
ok!!!!!
infosys paper 1997.
paper code q/c.
-------------------------------------------------------------------------
1) be * be = acb
a,b,c,e are non zero numbers find b,e.
ans) b=1 e=9
2) a,b,c,d,e are having numerical values. there are some conditions
given
a) a=c <===> b!=e
b) difference between a and c as same as difference between c and b
as same as difference between a and d
c) cd
then find a,b,c,d,e
3) there are six cards in which it has two king cards. all cards are
turned down and two cards are opened
a) what is the possobility to get at least one king.
b) what is the possibility to get two kings.
4) a person went to a shop and asked for change for 1.15paise.
but he said that he could not only give change for one rupee.
but also for 50p,25p,10p and 5p. what were the coins he had
ans) 1-->50 4--->10p 1--->25p
5) there are 3 nurses and they work altogether only once in a week.
no nurse is called to work for 3 consecutive days.
nurse 1 is off on tueseday,thursday and sunday.
nurse 2 is off on saturday.
nurse 3 is off on thursday,sunday.
no two nurses are off more than once a week.
find the day on which all the 3 nurses were on work.
6) there are 5 persons a,b,c,d,e and each is wearing a block or white
cap on his head. a person can see the caps of the remaining 4 but can't
see his own cap. a person wearing white says true and who wears block
says false.
i) a says i see 3 whites and 1 block
ii) b says i see 4 blocks
iii) e says i see 4 whites
iiii) c says i see 3 blocks and 1 white.
now find the caps weared by a,b,c,d and e
7) there are two women, kavitha and shamili and two males shyam, aravind
who are musicians. out of these four one is a pianist, one flutist,
violinist and drummer.
i) across aravind beats pianist
ii) across shyam is not a flutist
iii) kavitha's left is a pianist
iiii) shamili's left is not a drummer
v) flutist and drummer are married.
8) 1/3 ed of the contents of a container evaporated on the 1 st day.
3/4 th of the remaining contents of the container evaporated the
second day. what part of the contents of the container are left at
the end of the second day.
9) a man covered 28 steps in 30 seconds but he decided to move fast and
covered 34 steps in 18 seconds. how many steps are there on the
escalator when stationary.
10) all fair skinned, rich, handsome, muscular, lean and employed are
tall men
1) all lean men are muscular.
2) no fairskinned person who is not rich is handsome.
3) some muscular men are handsome.
4) all handsome are fairskinned.
5) no person who is neither fair skinned nor muscular is enplyed.
6) we unable to recall this condition and question also incomplete.
-------------------------------------------------------------------------
Infosys
--------
1) There are two balls touching each other circumferencically.
The radius of the big ball is 4 times the diameter of the small
ball.The outer small ball rotates in anticlockwise direction
circumferencically over the bigger one at the rate of 16 rev/sec.
The bigger wheel also rotates anticlockwise at Nrev/sec. what is
'N' for the horizontal line from the centre of small wheel always
is horizontal.
2) 1 2 3 4
+ 3 4 5 5
----------
4 6 8 9
- 2 3 4 5
----------
2 3 4 4
+ 1 2 5 4
------------
3 6 9 8
Q) Strike off any digit from each number in seven rows (need not
be at same place) and combine the same operations with 3 digit numbers
to get the same addition. After this strike off another digit from all
and add all the No.s to get the same 2 digit No. perform the same
process again with 1 digit No.s. Give the ' no.s in 7 rows at
each stage.
3) there is a safe with a 5 digit No. The 4th digit is 4 greater than
second digit, while 3rd digit is 3 less than 2nd digit. The 1st digit
is thrice the last digit. There are 3 pairs whose sum is 11. Find
the number. Ans) 65292.
4) there are 2 guards Bal and Pal walking on the side of a wall of a
wearhouse(12m X 11m) in opposite directions. They meet at a point and
Bal says to Pal " See you again in the other side". After a few moments
of walking Bal decides to go back for a smoke but he changes his
direction again to his previous one after 10 minutes of walking in
the other(opposite) direction remembering that Pal will be waiting
for to meet.If Bal and Pal walk 8 and 11 feet respectively, how
much distance they would have travelled before meeting again.
5) xxx)xxxxx(xxx
3xx
-------
xxx
x3x
------
xxx
3xx
------
Q) Find the 5 digit No.
Hint: 5 is used atleast once in the calculation.
6) Afly is there 1 feet below the ceiling right across a wall length
is 30m at equal distance from both the ends. There is a spider 1 feet
above floor right across the long wall eqidistant from both the ends.
If the width of the room is 12m and 12m, what distance is to be
travelled by the spider to catch the fly? if it takes the shortest
path.
7) Ramesh sit around a round table with some other men. He has one
rupee more than his right person and this person in turn has 1 rupee
more than the person to his right and so on, Ramesh decided to give
1 rupee to his right & he in turn 2 rupees to his right and 3 rupees
to his right & so on. This process went on till a person has
'no money' to give to his right. At this time he has 4 times the
money to his right person. How many men are there along with Ramesh
and what is the money with poorest fellow.
8)Question related to probabilities of removing the red ball from a
basket,given that two balls are removed from the basket and the other
ball is red. The basket contains blue,red,yellow balls.
9)Venkat has 1boy&2daughters.The product of these children age is 72.
The sum of their ages give the door numberof Venkat.Boy is elder of
three.Can you tell the ages of all the three.
ANALYTICAL
----------
1)L:says all of my other 4 friends have money
M:says that P said that exact one has money
N:says that L said that precisely two have money
O:says that M said that 3 of others have money.
P:Land N said that they have money.
all are liers.Who has money&who doesn't have?
2)A hotel has two,the east wing and the west wing.some east wing rooms
but not all have an ocean view(OV).All WW have a harbour view(HV).The
charge for all rooms is identical, except as follows
* Extra charge for all HV rooms on or above the 3rd floor
* Extra charge for all OV rooms except those without balcony
* Extra charge for some HV rooms on the first two floor&some EW rooms
without OV but having kitchen facilities. (GRE modrl Test 3-question
1J-22)
3)Post man has a data of name surname door no.pet name of 4 families.
But only one is correct for each family.There are a set of statements
&questions.
4)4 couples have a party.Depending on the set of statements,find who
insulted whom and who is the host of the party.
5)5 women given some of their heights(tall,medium,short)Hair( long,
plainted),stards(Black or Brown), sari,2 medium,2-short.Tall->no
sari.Plainted->medium.Answer the combinations.
1) A person has to go both Northwards&Southwards in search of a job.
He decides to go by the first train he encounters.There are trains for
every 15 min both southwards and northwards.First train towards south
is at 6:00 A.M. and that towards North is at 6:10 .If the person arrives
at any random time,what is the probability that he gets into a train
towards North.
2) A person has his own coach&whenever he goes to railway station he
takes his coach.One day he was supposed to reach the railway station
at 5 O'clock.But he finished his work early and reached at 3 O'clock.
Then he rung up his residence and asked to send the coach immediately.
He came to know that the coach has left just now to tje railway station.
He thought that the coach has left just now to the railway station.He
thought that he should not waste his time and started moving towards
his residence at the speed of 3mi/hr.On the way,he gets the coach and
reaches home at 6 o'clock.How far is his residence from railway
station.
3)Radha,Geeta&Revathi went for a picnic.After a few days they forgot the
date,day and month on which they went to picnic.Radha said that it was
onThursday,May 8 and Geeta said that it was Thursday May 10.Revathi
said Friday Jun 8.Now one of them told all things wrongly,others one
thing wrong and the last two things wrongly.If April 1st is tuesday
what is the right day,date and month?
--------------------------------------------------------------------------
I am sending mainly c
paper and some questions.Rao
also will send somethig.There are 15 c q's all are discriptive.
int a=2;
f1(a++);
}
f1(int c)
{
printf("%d", c);
}
1)fallacy
f()
{
int a;
void c;f2(&c,&a);
2)a=0;
b=(a=0)?2:3;
a) What will be the value of b? why
b) If in 1st stmt a=0 is replaced by -1, b=?
c) If in second stmt a=0 is replaced by -1, b=?
3)char *a[2]
int const *p;
int *const p;
struct new { int a;int b; *var[5] (struct new)
4)f()
{
int a=2;
f1(a++);
}
f1(int c)
{
printf("%d", c);
}
c=?
5)f1()
{
f(3);}
f(int t)
{
switch(t);
{
case 2: c=3;
case 3: c=4;
case 4: c=5;
case 5: c=6;
default: c=0;}
value of c?
6)Fallacy
int *f1()
{
int a=5;
return &a;
}
f()
int *b=f1()
int c=*b;
}
7)a)Function returning an int pointer
b)Function ptr returning an int ptr
c)Function ptr returning an array of integers
d)array of function ptr returning an array of integers
(See Scham series book)
8)fallacy
int a;
short b;
b=a;
9)Define function ?Explain about arguments?
10)C passes By value or By reference?
11)Post processed code for
abc=1;
b=abc1; (1 or 2 blank lines are given)
strcpy(s,"abc");
z=abc;
12)difference between my-strcpy and strcpy ?check
13)f()
{
int *b;
*b=2;
}
14)Function which gives a pointer to a binary trees const an integer value
at each code, return function of all the nodes in binary tree.(Study)Check
15)Calling refernce draw the diagram of function stack illustrating the
variables in the -----then were pushed on the stack at the point when
function f2 has been introduced
type def struct
{ double x,double y} point;
main( int argc, char *arg[3])
{double a;
int b,c;
f1(a,b);}
f1(double x, int y)
{
point p;
stack int n;
f2(p,x,y)}
f2(point p, double angle)
{ int i,j,k,int max)
}
_____________________________________________________________
1)Least no. when divide by [7 gives remainder 6,6gives 5,5 gives 4 and
soon ans;419
2)What compilation do (ans source code to obj)
3)Artficial language is provided which of the language (Lisp) check
4)241 change its equivalent octal ?
5)for cube and sphere 3 views are similarly draw one such figure?
6)Write a program to exchange two variaables without temp
7)Fortran cannot have value by reference
8)4,6,8,__
9)success is to failure, joy is to
10)MEANING OF JOLLY?
11)opposite to essential?
12)"Raw" means
13)To be good "Wrestler " one should have?
14)"Command" opposite?
15)genuine opposite?
16)Two proverbs are goven
17)Sum of two consecutive nos is 55, larger one is?
18)A person goes 4/5 of his usual speed reaches 10min lateto his
destinaton, time taken?
19)80% pass in english, 70%pass in maths , 10%fail in both , 144 pass in
both . How many all appeared to the test?
20)To get a parabola if you cut a section of?
21)Bird is flying 120km/hr b/w B to R. two trians at B to R at 60 kmph
The distance trvelled by the bird before it is killed.Ans.120
22)meaning of inert
If any are there rao will send you. Prepare well
for the interview. Mostly on graphics , geometry .Prepare questions like
(for interview)Prove some of the angles in a triangle are 180.Angle in a
half circle is 90.How will you measure hight of building when you are at
the top of the building and if you have stone with you.
Here is theinfosys paper It may not contain full
questions and ans
Understand it
1. There are 4 married couples out ofwhich 3 a group
isneeded . But there should not be his of her spouse .How nmany groups are
possible ?
Ans 32
2.In the 4 digits 1,2,3,4 how many 4 digited numbers are
possible which are divisable by 4? Repetetions are allowed
Ans 64
3. Twow men are goingalong a trackf rail in the opposite
direction.One goods train crossed the first person in 20 sec.
After 10 min the train crossed the other person who is commingin
opposite direction in 18 sec .Afterthe train haspassed, when thetwo
persons will meet?
Approx 72min check it once.
4. Theno. of children adults . Theno .of adults the
no .of boys .The no.of boys no. of girls .The no.of girls no.of
family conditions
1.No family is without a child
2 Every girl has atleast one brotherand sister .
Ans cabgf; 9 6 5 4 3 .
6.There are4 boys Anand ,Anandya ,Madan and Murali with
nicmnames perich,zomie ,drummy and madeena not in thesame
order
Some conditons
Ans Anand : Perich
Anandya: drummy
Madan : Zombie
murali: Madeena
7.Thereare2diomans ,1 spadeand1 club and 1ace and also 1king ,1
jack and 1 aceare arranged in a straight line
1.The king is at third place
2.Theleft of jack is a heart and itsright is king
3. No two red colours arein consequtive.
4.The queensareseperated by two cards. Write the orderor which
suits
(hearts ,clubs )and names(jacks queensetc.)
8. Writeeach statementis true or false 8M
1.The sum of the1st three statements and the2nd false statement
givesthe true statement.
2.The no.oftrue statements falsestatement
3. The sum of2nd true statement and 1st falsestatement gives
the first true statement.
4. Thereareatmost 3 falsestatements
5.There is no two consequtive true statements
6.If this containsonly 1-5 statements ,theanswer of this is
sameasthe an answer of the following question
9.Question on Venn diagram.
All handsome are also fair skinned
Sme musularsare fair skinned
Some musculars are also handsome
All lean are also muscular
Some lean are also fair skinned.
All rich man inot fair skinned but all rich manare handsome
Some questions follows.
10
There are 3 pileseach containe 10 15 20 stones. There are
A,B,C,D,F,G and h persons .One man can catch upto four stones from any
pile. The last manwho takeswill win. If first A starts next B. and
so on
who will win?
Ans May be F
Essay writing
1 Intrnet revolution
2.Media for youth
INFOSYS(1998-99)
LOGICAL THINKING TEST
---------------------
Time : 1 hour
Total Marks : 50
ALL QUESTIONS DO NOT CARRY EQUAL MARKS
INSTRUCTIONS
* Please do not write/mark on the question paper.
* Read the questions carefully. Work your answers carefully
and as rapidly as possible.
* Do not spend too much time on questions that seem difficult
for you. If time permits go back to the ones you have left out.
* Answer sheets have been provided to you separately. Use the
first sheet to write your answers and use the remaining sheets for
the detailed working.
* On completion, please put your answer sheet along with the
working sheets, inside the question paper and hand them back to us.
* There is no negative marking.
Do not turn the page until you are told to do so.
1. When Arthur is as old as his father Hailey is now, he shall be
5 times as old as his son Clarke is now. By then, Clarke will be 8
times older than Arthur is now. The combined ages of Hailey and Arthur are
100 years. How old is Clarke ? 2 Marks
2. I have one orange glass containing orange juice and another
white glass containing apple juice. I take 50 ml of orange juice and mix it
with apple juice in the white glass. Then I take 50 ml of this
mixture and transfer it back to the orange glass. If you compare amount of apple juice in the orange glass and amount of orange juice in the white glass which is more than the other and by how much ? 3 Marks
3. 3 Marks
The seven digits in this subtraction problem are 0,1,2,3,4,5 and 6.
Each letter represents the same digit whenever it occurs.
D A D C B
E B E G
--------------------
B F E G
--------------------
What digit is represented by each letter ?
4. 4 Marks
The Jones have named their four boys after favourite
relatives; their friends, the Smiths, have done the same thing with their three
boys. One of the families has twin boys. From the following clues,
can you determine the families of all seven children and their ages ?
i) Valantine is 4 years older than his twin brothers.
ii) Winston, who is 8, and Benedict are not brothers. They are
each named after a grandfather.
iii) Briscoe is two years younger than his brother Hamilton,
But three years older than Dewey.
iv) Decatur is 10 years old.
v) Benedict is 3 years younger than Valentine; they are not
related.
vi) The twins are named for uncles.
5. 4 Marks
Motorboat A leaves shore P as B leaves Q; they move
across the lake at a constant speed. They meet first time 600 yards from P. Each returnsfrom the opposite shore without halting, and they meet 200
yards from Q. How long is the lake ?
6. 4 Marks
Fanta, Pepsi and Citra often eat dinner out.
a) Each orders either coffee or tea after dinner.
b) If Fanta orders coffee, then Pepsi orders the drink that
Citra orders.
c) If Pepsi orders coffee, then Fanta orders the drink that
Citra does not order.
d) If Citra orders tea, then Fanta orders the drink that Pepsi
orders.
Which person/persons always orders the same drink after dinner ?
7. 6 Marks
On the Island of imperfection there is a special road,
Logic Lane, on which the houses are usually reserved for the more mathematical
inhabitants.
Add, Divide and Even live in three different houses on this
road (which has houses numbered from 1-50). One of them is a member of the
Pukka Tribe, who always tell the truth; another is a member of the Wotta
Tribe, who never tell the truth; and the third is a member of the Shalla Tribe,
who make statements which are alternately true and false, or false and
true.
They make statements as follows :
ADD : 1 The number of my house is greater than that of
Divide's.
2 My number is divisible by 4.
3 Even's number differs by 13 from that of one of the
others.
DIVIDE : 1 Add's number is divisible by 12.
2 My number is 37.
3 Even's number is even.
EVEN : 1 No one's number is divisible by 10.
2 My number is 30.
3 Add's number is divisible by 3.
Find to which tribe each of them belongs, and the number of
each of
their houses.
8. 8 Marks
The names of the inhabitants of Walkie Talkie Land sound
strange to the
visitors, and they find it difficult to pronounce them, due to
their
length and a few vowel sounds they contain. The Walkie Talkie
guide is
discussing the names of four inhabitants - A,B,C and D. Their
names
each contain upto eight syllables, although none of the four
names
contain the same number. Two of the names contain no vowel
sounds; one
contains one vowel sound; and one contains two vowel sounds.
From the Guide's statements below, determine the number of
syllables
and vowel sounds in each of the four Walkie Talkie names :
i) The one whose name contains two vowel sounds is not A.
ii) C's name does not contain more than one vowel sound or
fewer than
seven syllables.
iii)The name with seven syllables does not contain exactly one
vowel
sound.
iv) B and C do not have names with the same number of vowel
sounds.
v) Neither the name with five syllables nor the name with
seven syllables
contains more than one vowel sound.
vi) Neither the name with six syllables, nor the B's name,
contains
two vowel sounds.
9. 8 Marks
Multiplication and Division.
(1) - - - - - (a) (2) _ _ . _ (d)
________________
- - - (b) - - -) - - - - - . 0
_________________ - - -
_______________
- - - - -
- - - - - - - - -
___________________ - - -
_______________
- - - - - - - (c)
- - -
- - -
========
(1) and (2) represent the same two numbers - in one case
multiplied
9together, in other case divided.
Given that there are no 3's. find the missing digits indicated
as
(a), (b), (c) and (d) above ?
10. 8 Marks
Two identical twins have a very unusual characteristic.
One tells
nothing but lies on Mondays, Wednesdays and Fridays, and tells
nothing
but the truth all other days. The other tells nothing but lies
on
Tuesdays, Thursdays and Saturdays, and tells nothing but the
truth
all other days. On Sundays both children speak the truth.
1) Which of the following statements can be deduced from the
information presented ?
i) If it is Sunday, the twins will both say so.
ii) If it is not Sunday,one twin will give the correct day
and
the other will lie about everything.
iii)On any given day, only one twin will give his correct
name.
a) i only
b) i and ii only
c) i and iii only
d) ii and iii only
e) i,ii and iii
2) According to the information presented, which of the
following
conversations will be impossible.
a) Twin A : "Today you are a lier"
Twin B : "You are telling the truth"
b) Twin A : "Today you are a lier"
Twin B : "Today I am a truthteller"
c) Twin A : "Tommorow I shall be a lier"
Twin B : "That's correct"
d) Twin A : "Tommorow you will be a lier"
Twin B : "Today you are a truthteller"
e) Twin A : "Yesterday we were both truthtellers"
Twin B : "You are lying"
3) Assume that the twins followed a different set of
rules, so that on
a given day both told only the truth while next day
both only lied,
alternating days of truth telling and lying. Under these
rules,which
of the following conversations would be possible ?
a) Twin A : "Today you are a lier"
Twin B : "That is correct"
b) Twin A : "Today you are a lier"
Twin B : "That is not so"
c) Twin A : "Tommorow we will be liers"
Twin B : "Yesterday we were truthtellers"
d) Twin A : "Tommorow we will be liers"
Twin B : "You are 1 year older than I am"
e) Twin A : "We always tell the truth"
Twin B : "We some times tell the truth"
4) If the twins are heard saying the following on the same
day, which
choice presents a correct statement ?
Twin A : "It is Sunday Today"
Twin B : "Yesterday was Sunday"
Twin A : "it is summer season now"
a) it is a summer sunday
b) it is a summer monday
c) it is Monday but not summer
d) it is Sunday but not summer
e) it is impossible to determine whether it is Sunday or
Monday.
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