Ans. (A')(B')(AB) , where ' stands for complement.
Q. A works thrice as much as B. If A takes 60 days less than B to do a work then find the
number of days it would take to complete the work if
both work together?
Ans. 22½days
Q. How many 1's are there in the binary form of 8*1024 + 3*64 + 3
Ans. 4
Q. In a digital circuit which was to implement (A B) + (A)XOR(B), the designer
implements (A B) (A)XOR(B)
What is the probability of error in it ?
Q. A boy has Rs 2. He wins or loses Re 1 at a time If he wins he gets Re 1 and if he
loses the game he loses Re 1.
He can loose only 5 times. He is out of the game if he earns Rs
5.
Find the number of ways in which this is possible?
Ans. 16
Q. If there are 1024*1280 pixels on a screen and each pixel can have around 16 million
colors
Find the memory required for this?
Ans. 4MB
Q. On a particular day A and B decide that they would either speak the truth or will lie.
C asks A whether he is speaking truth or lying?
He answers and B listens to what he said. C then asks B what A
has said B says "A says that he is a liar"
What is B speaking ?
(a) Truth
(b) Lie
(c) Truth when A lies
(d) Cannot be determined
Ans. (b)
Q
Ans. 75(approx)
Q. A student is ranked 13th from right and 8th from left. How many students are there
in totality ?
Q. A man walks east and turns right and then from there to his left and then 45degrees
to
his right.In which direction did he go
Ans. North west
Q. A student gets 70% in one subject, 80% in the other. To get an overall of 75%
how much should get in third subject.
Q. A man shows his friend a woman sitting in a park and says that she the daughter
of my grandmother's only son.
What is the relation between the two
