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Ans : 120 (5x4!)
3. If two cards are taken one after another without replacing from
a pack of 52 cards what is the probability for the two cards be
queen. Ans : (4/52)*(3/51) (1/17)*(1/13)
4. 51 x 53 x ... x 59 ; symbols ! - factorial
^ - power of 2
(a) 99!/49! (b) (c) (d) (99! x 25!)/(2^24 x 49! x 51!)
5. The ratio fo Boys to Girls is 6:4. 60% of the boys and 40% of girls
take lunch in the canteen. What % of class takes lunch in canteen.
Ans : 52% (60/100)*60 + (40/100)*40
Data Sufficiency : a) only statement A is sufficent , B is not
b) only statemnet B
c) both are necessary
d) both are not sufficient.
6. X is an integer. Is X dvisible by 5?
A) 2X is divisible by 5.
B) 10X is divisible by 5.
Ans : A)
7. (A) Anna is the tallest girl
(B) Anna is taller than all boys.
(Q) . Is Anna the tallest in the class
Ans : c
8. maths question
9, 10 Analytical
Zulus always speak truth and Hutus always speak lies. There are
three persons A,B&C. A met B and says " I am a Zulu or I am Hutu".
We don't know what exactly he said. then B meets C and says to c
that " A is a Zulu ". Then C replied " No, A is a Hutu ".
9. How many Zulus are there ? Ans 2( check)
10) Who must be a Zulu ? Ans B (check)
11,12.13,14.
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