# CGI Numerical Paper

Posted on :19-03-2016
CGI Solved Question Pape

Q1. 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 ?

Q2. 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

Q3. How many 1s are there in the binary form of 8*1024 + 3*64 + 3

ANS: 4

Q4. The following truth table is given What is Y equal to??
A B C Y 0 0 0 1 0 0 1 1 0 1 0 0 0 1 1 0 1 0 0 0 1 0 1 0 1 1 0 1 1 1 1 1

ANS: (A)(B)(AB) , where  stands for complement.

Q5. A man leaves office daily at 7pm A driver with car comes from his home to pick him from office and bring back home One day he gets free at 5:30 and instead of waiting for driver he starts walking towards home. In the way he meets the car and returns home on car He reaches home 20 minutes earlier than usual. In how much time does the man reach home usually?

ANS: 1hr 20min

Q6. 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

Q7. 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

Q8. What is the angle between the two hands of a clock when time is 8:30

ANS: 75(approx)

Q9. 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)

Q10. A student is ranked 13th from right and 8th from left. How many students are there in totality?

Q11. A student gets 70% in one subject, 80% in the other. To get an overall of 75% how much should get in third subject.

Q12. A man shows his friend a woman sitting in a park and says that she the daughter of my grandmothers only son. What is the relation between the two

ANS: Daughter

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