To find: Probability that a leap year selected at random will contain 53 Mondays As we know, In a leap year there will be fifty-two weeks and two days. These 2 days can be: (Sun, Mon), (Mon, Tue), (Tue, Wed), (Wed, Thu), (Thu, Fri), (Fri, Sat) and (Sat, Sun) Total outcomes = 7 Favourable outcomes = (Sun, Mon), (Mon, Tue) = 2 Hence the probability of getting 53 Mondays in a leap year = 2/7