15th august 2010 was which day of the week?  Choose the correct choice from the following answers.
A) Thursday B) Friday C) Wednesday D) Sunday E) Monday
ANSWER: Sunday   Explanation:   15th August 2010 can be written as 2009 + days from 1st January 2010 to 15th August 2010.   =&gt; Total number of odd days in 400 years = 0   Hence, total number of odd days in 2000 years = 0 (as 2000 is a perfect multiple of 400)   Odd in days in the period 2001-2009:   7 normal years + 2 leap yeas   =&gt; (7*1) + (2*2)= 
<gadget id="calculator">(7*1) + (2*2)</gadget>
<output>11</output>
11=&gt; Odd days will be 11- (7*1)= 
<gadget id="calculator">11- (7*1)</gadget>
<output>4</output>
4   Days from January 1 to August 15 in 2010: 31+28+31+30+31+30+31+15= 227 days.   = 32 weeks and 3 days, this gives additional 3 odd days.   =&gt; Total odd days= 3+4= 
<gadget id="calculator">3+4</gadget>
<output>7</output>
7=&gt; 7 odd days=1 week= 0 odd days   =&gt; 0 odd days= Sunday   Thus, 15th August 2010 was a Sunday.   Answer: Sunday
<result>D</result>
15th august 2010 was which day of the week?