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Find the probability that a leap year selected at random will contain 53 Sundays.

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Find the probability that a leap year selected at random will contain 53 Sundays. Select the correct answer from above options

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Correct Answer - ` 2/7` A leap year has 366 days=52 weeks and 2 days. Now, 52 weeks contain 52 Sundays. The remaining 2 days can be: (i) Sunday and Monday (ii) Monday and Tuesday (iii) Tuesday and Wednesday (iv) Wednesday and Thursday (v) Thursday and Sunday (vi) Friday and Saturday (vii) Saturday and Sunday Out of these 7 cases, their are 2 cases favouring it to be Sunday. ` :. ` P( a leap year having 53 Sundays ) =` 2/7`.

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