If 30 April 1983 was a Saturday, then what was the day of the week on 13 August 1989?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. Sunday.
From 30 April 1983 to 30 April 1989 = 6 normal years and 2 leap years.
Normal years: 4 × 365 = 1460 days
Leap years: 2 × 366 = 732 days
Total: 1460 + 732 = 2192 days
From 30 April 1989 to 13 August 1989 = May (31) + June (30) + July (31) + August (13) = 105 days
Total days from 30 April 1983 to 13 August 1989 = 2192 + 105 = 2297 days
Total odd days = 2297 ÷ 7 = 1
Since 30 April 1983 was a Saturday, adding 1 day gives us Sunday.
Hence, 13 August 1989 was Sunday.