What day of the week was 1 January 1901	Select the correct option.
A) Monday
B) Tuesday
C) Saturday
D) Friday
E) Sunday
Explanation:   1 Jan 1901 = (1900 years + 1st Jan 1901)   We know that number of odd days in 400 years = 0   Hence the number of odd days in 1600 years = 0 (Since 1600 is a perfect multiple of 400)   Number of odd days in the period 1601-1900   = Number of odd days in 300 years   = 5 x 3 = 15 = 1   (As we can reduce perfect multiples of 7 from odd days without affecting anything)   1st Jan 1901 = 1 odd day   Total number of odd days = (0 + 1 + 1)= 
<gadget id="calculator">(0 + 1 + 1)</gadget>
<output>2</output>
2   2 odd days= Tuesday   Hence 1 January 1901 is Tuesday.   Answer: Option Tuesday
<result>B</result>
What day of the week was 1 January 1901