The 19th of September 1987 was a Saturday. If 1988 was a leap-year, what day of the week was the 24th of September 1990?
Answers:
A) Monday B) Tuesday C) Wednesday D) Thursday E) Friday
19th September   1987: Saturday   1988: Monday (due to leap year)   1989: Tuesday   1990: Wednesday   Hence 24th September was a Monday.   The answer is Monday.
<result>A</result>
The 19th of September 1987 was a Saturday. If 1988 was a leap-year, what day of the week was the 24th of September 1990?