Discussion of Question with ID = 160 under Clocks-and-Calendars

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Question

If 3rd February of an ordinary, non-leap year falls on a Tuesday, then what will be the day of week on 12th June of that year?

A

Friday.

B

Sunday.

C

Tuesday.

D

Saturday.

Soln.
Ans: a

Count the days from months between February 3 and June 12 like this: February days = 28;March days = 31;April days = 30;May days = 31;Add 12 days of June. Subtract 3 days of February. So total days = 129. Since 129 = 18 X 7 + 3, so excess days are 3. So we can count the day to Tuesday + 3 = Friday.

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