Question

Smt. Indira Gandhi died on 31${}^{{}_{st}}$ October, 1984 The day of the week was ____________.

• A. Monday
• B. Tuesday
• C. Wednesday
• D. Friday

Answer 1

The correct option is C Wednesday

1600 years contain 0 odd day, 300 years contain 1 odd day
Also, 83 years contain 20 leap years and 63 ordinary years and therefore (40 + 0) odd days i.e., 5 odd days
∴∴ 1983 years contain (0+1+5) i.e., 6 odd days.
Number of days from Jan. 1984 to 31st Oct. 1984
= (31+29+31+30+31+30+31+31+30+31)
= 305 days = 4 odd days
∴∴ Total number of odd days = 6 + 4 = 3 odd days
So, 31st Oct, 1984 was Wednesday.