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प्रश्न
What is the probability that an ordinary year has 53 Sundays?
उत्तर
There are 365 days, i.e. 52 weeks and one day
This one day can be any of the seven days of the week.
∴ P (Sunday) = \[\frac{1}{7}\]
We know that 52 weeks will have 52 Sundays.
Hence, required probability = P (an ordinary year with 53 Sundays) = \[\frac{1}{7}\]
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