What was the day on 23 March 1931? Number of odd days in 1600 yea
| What was the day on 23 March 1931?
A. Saturday
B. Sunday
C. Tuesday
D. Monday
Please scroll down to see the correct answer and solution guide.
Right Answer is: D
SOLUTION
Number of odd days in 1600 years = 0
Number of odd days in 300 years = 1
Number of odd days in 30 years = Remainder of (7 × 2 + 23)/7 = 2
Number of odd days in 1931 up to March 23 = Remainder of (31 + 28 + 23)/7 = 5
Total odd days = Remainder of (1 + 2 + 5)/7 = 1
∴ The day on 23 March 1931 was Monday.