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Question

What will be day of the week 25th August, 2010?

A
Tuesday
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B
Wednesday
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C
Thursday
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D
Sunday
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Solution

The correct option is B Wednesday
= 2009 years + Period 1.1.2010 to 25.10.2010
Odd days in 1600 years = 0
Odd days in 400 years = 0
9 years from then = 2 leap years + 7 normal years = (2*2 + 7*1) = 4 odd days
Jan = 31, Feb = 28, March = 31, April = 30, May = 31, June = 30, July = 31 & Aug =25
Total = 31+28+31+30+31+30+31+25 = 237 days
33 weeks + 6 days
Therefore, total number of odd days = (0+0+4+6) = 10 odd days
= one week and 3 odd days => Sunday + 3 days = Wednesday

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