ISRO Mechanical & Aerospace 2013 - Question 53

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Chance that a leap year selected at random will contain 53 Sundays is

  • A. 3/7
  • B. 7/2
  • C. 7/3
  • D. 2/7

Answer: D. 2/7

Explanation: Leap year has 366 days = 52 weeks + 2 days. The 2 extra days can be (Sat, Sun), (Sun, Mon) ... out of 7 combinations. 2 combinations have Sunday. Prob = 2/7.

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