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What was the day of the week on 1 January 2001 A. Friday B. Tuesday C. Sunday D. Wednesday

Please give the formulas or hints how 2 solve this types questions

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ans:. Monday

ordinary year contains 365 days=(52 week+1  day) 1 odd day

leap year contains 366 days=(52 weeks+2  days) = 2 odd days.

2000 century contain 0 odd day. 0 odd daya means sunday. 2000 last day sunday. ist january 2001 was monday

very easy formula 

if question is 18 jun 2012 is Monday what will be day on 18 jun 2013

answer is Tuesday because of add one day 

if question ask 18 jun 2012 is monday what will be day on 18 Jun 2011

answer is Sunday because of  - one day ............ok

Thanks

Digambar B Waghmare (Librarian)

Sinhgad College of Engineerng, Pandharpur

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