Gate Mathematics Sample Paper

1. The Probability That a leap Year Selected at random contains 53 Sundays is

A. 7/366
B. 26/183
C. 1/7
D. 2/7

Ans: D.

2. The probability that a leap year selected at random contains 53 Sundays or 53 Mondays is

A. 2/7
B. 4/7
C. 3/7
D.1/7

3. Let A nd B be two events such that P(A) = 0.3 and P (AB) = 0.8. if A and B are independent events, then P (B) =

Ans: 5/7

4. The Probability that atleast one of the events A and B Occurs is 0.6. If A and B occur Simultaniously with Probability 0.2, Then
Ans: 1.2

5. If  = 1/4        = 1/5 & P (A) = P(B) = ?
Ans: 9/40