If 15th Aug 1947 was a Friday, then which day of the week was 26th Jan 1950?
Explanation:
Let us first calculate the number of odd days after 15th Aug, 1947 till 15th Aug, 1949:
Odd days from 15th Aug, 1947 - 15th Aug, 1948 = 2 (because of 29th Feb, 1948) 15th Aug, 1948 - 15th Aug, 1949 = 1
Total odd days = 2 + 1 = 3 odd days.
Now, let us calculate the odd days after 15th Aug, 1949 till 26th Jan, 1950.
Aug = 16 Sep = 30 Oct = 31 Nov = 30 Dec = 31 Jan = 26
∴ Total days = 16 + 30 + 31 + 30 + 31 + 26 = 164 day.
∴ Odd days = Remainder (164 ÷ 7) = 3.
⇒ Total odd days from 15th Aug, 1947 till 26th Jan, 1950 = 3 + 3 = 6.
∴ If it is Friday on 15th Aug, 1947, day of the week on 26th Jan, 1950 will be same as the day of the week 6 days after Friday i.e., Thursday.
Hence, option (a).
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