What will be the day of the week 15th August, 2010?
Choose the correct choice from the following answers:
A) Thursday B) Sunday C) Monday D) Saturday E) Friday
Explanation:   15th Aug 2010 = (2009 years + period from 1-Jan-2010 to 15-Aug-2010)   We know that number of odd days in 400 years = 0   Hence the number of odd days in 2000 years = 0 (Since 2000 is a perfect multiple of 400)   Number of odd days in the period 2001-2009   = 7 normal years + 2 leap year   = 7 x 1 + 2 x 2 = 11 = (11 - 7x1) odd day = 4 odd day   Days from 1-Jan-2010 to 15-Aug-2010   = 31 (Jan) + 28 (Feb) + 31 (Mar) + 30 (Apr) + 31(may) + 30(Jun) + 31(Jul) + 15(Aug)   = 227   227 days = 32 weeks  + 3= 
<gadget id="calculator"> + 3</gadget>
<output>3</output>
3 odd day   Total number of odd days= (0 + 4 + 3)= 
<gadget id="calculator">(0 + 4 + 3)</gadget>
<output>7</output>
7 odd days= 0 odd day   0 odd day = Sunday   Hence 15th August, 2010 is Sunday.   Answer: Option Sunday
<result>B</result>
What will be the day of the week 15th August, 2010?