Clocks & Calendars · Question 22 · Medium
India's Constitution came into force on 26 January 1950. What day of the week was that?
- Friday
- Sunday
- Wednesday
- Thursday
Answer and explanation
Answer: D. Thursday
Explanation: Count odd days up to 26 January 1950: 1600 years give 0 odd days, the next 300 years give 1, the 49 years 1901–1949 (12 leap years) give 49 + 12 = 61 ≡ 5, and 26 days of January give 5. Total 0 + 1 + 5 + 5 = 11 ≡ 4 odd days, and 4 corresponds to Thursday.
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