Gate Exam

What is the chance that a leap year, selected at random, will contain 53
Sundays?
(A) 2/7 (B) 3/7 (C) 1/7 (D) 5/7

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Gate Other Question
let b be a positive integer and a=b^2-b. if b^3=4,then a^2-a is divisible by
a. 15
b. 20
c. 24
d. not H,G,I,S are siblings.All were born on 1st January.The age difference between any two successive siblings is less than 3 year.what is correct :
(1) H's age +G's age>I's age + S's age
(2)The age difference between G and S is 1 year.G is not the oldest and S is not the youngest.
(3) There are no twins