Q. 8  If a leap year is selected at random, what is the chance that it will contain 53 tuesdays?

Answers (1)

In a leap year, there are 366 days.

In 52 weeks, there are 52 Tuesdays.

The probability that a leap year will have 53 Tuesday is equal to the probability that the remaining 2 days are Tuesday.

The remaining 2 days can be :

1. Monday and Tuesday

2. Tuesday and Wednesday

3. Wednesday and Thursday

4. Thursday and Friday

5.friday and Saturday

6.saturday and Sunday

7.sunday and Monday

 Total cases = 7.

Favorable cases = 2

Probability of having 53 Tuesday in a leap year = P.

                                                   P=\frac{2}{7}

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