Probability class 10 / find the probability that a randomly taken leap year has 52sundays

Q. What is the probability that a randomly taken leap year has 52 Sunday’s.

Solution.   Leap year = 366 days 

                                      =52*7+2days extra (2 days extra - Sunday-Monday, Monday-Tuesday,Tuesday-Wednesday,wed-Thursday, thursday-friday, friday-Saturday,Saturday-Sunday)

    Probability ( not exactly 52 Sunday’s ) = 2/7

Probably ( exactly 52 sundays) = 1-2/7  =  5/7  

Your answer is 5/7.