Q28. What is the probability of getting 53 Mondays in a leap year?
Question
(A) 1/7
(B) 53/366
(C) 2/7
(D) 7/366
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Class 10 Maths
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2021-12-28T13:47:51+00:00
2021-12-28T13:47:51+00:00 1 Answer
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Answer ( 1 )
Answer: (C)
Explanation: With 366 days, the
number of weeks in a year is
366/7 = 52 (2/7)
i.e., 52 complete weeks which
contains 52 Mondays,
Now 2 days of the year are
remaining.
These two days can be
(Sunday, Monday), (Monday,
Tuesday), (Tuesday, Wednesday),
(Wednesday, Thursday),
(Thursday, Friday), (Friday,
Saturday), (Saturday, Sunday)
i.e., there are 7 pairs, in which
Monday occurs in 2 pairs,
So probability is:
P (53 Monday) = 2/7