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If the 1st January of a certain year, wh...

If the 1st January of a certain year, which was not a leap year, was a Thursday, then what day of the week was the 31st December of that year ?

A

Monday

B

Thursday

C

Sunday

D

Saturday

Text Solution

Verified by Experts

The correct Answer is:
B
The given year is a non-leap year and contains 365 days.
(The number of days from 1st January to 31st December is 365)
`365 -= 1` (mod 7)
The 365th day is equivalent to the first day of the year.
`:.` But the first day of the week is Thursday.
`:.` Hence, 31st December is Thursday.
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