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Find the probabiliy that a non leap year chosen at random has 52 sundays 53 sundays

Posted by Khan Danish 6 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Harsh Mishra 6 years, 3 months ago

Answer By :- Syeda

A non-leap year has 365 days
A year has 52 weeks. Hence there will be 52 Sundays for sure.
52 weeks = 52 x 7 = 364 days .
365– 364 = 1day extra.
In a non-leap year there will be 52 Sundays and 1day will be left.
This 1 day can be Sunday, Monday, Tuesday, Wednesday, Thursday,friday,Saturday, Sunday.
Of these total 7 outcomes, the favourable outcomes are 1.
Hence the probability of getting 53 sundays = 1 / 7.
∴ probability of getting 52 sundays = 1 - 1/ 7 = 6 / 7.

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