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Find the probability that a non …

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Find the probability that a non leap year chosen at random has

52 Sundays
53 Sundays

Posted by Rohit R Mahatungade 8 years, 11 months ago

CBSE > Class 10 > Mathematics

1 answers

Naveen Sharma 8 years, 11 months ago

2) 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.

1)
∴ probability of getting 52 sundays = 1 - 1/ 7 = 6 / 7.

2Thank You

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CBSE > Class 10 > Mathematics