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प्रश्न
What is the chance that leap year should have fifty three Sundays?
योग
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उत्तर
In 52 weeks
We have 52 Sundays.
We have to find the probability of getting one Sunday to form the remaining 2 days can be a combination of the following S = {Saturday to Sunday, Sunday to Monday, Monday, to Tuesday, Tuesday to wednes¬day, Wednesday to Thursday, Thursday to Friday, Friday and Saturday}.
(i.e) n(s) =7
In this = A{Saturday to Sunday, Sunday to Monday}
(i.e) n(A) = 2
So, P(A) = `2/7`
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