1. 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. 22-1/2days

2. How many 1's are there in the binary form of 8*1024 + 3*64 + 3

Ans. 4

3. 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 ?

4. 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

5. If there are 1024*1280 pixels on a screen and each pixel can have around 16 million colours. Find the memory required for this?

Ans. 4MB

6. 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

7. What is the angle between the two hands of a clock when time is 8:30

Ans. 75 approx

8. A student is ranked 13th from right and 8th from left. How many students are

there in totality ?

9. 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.

10. If x/y=4 and y is not '0' what % of x is 2x-y

a. 150%

b. 175%

c. 200%

d. 250%

Ans. b