Was it a leap year in 1918?

Answer 1

Ignoring the hundreds years, leap years occur every 4th year, so this question is REALLY asking you:

Is 1918 divisible by 4?

Notice that 1900 / 100 = 19, and 100 / 4 = 25, so you only need to look at the 2 least significant digist: 18.

So I ask you this, is 18 divisible by 4? The answer to this is no.

So 1918 is not a leap year.

Answer 2

No. However, 1912 and 1916 were both leap years.

Answer 3

No, the year 1919 was not a leap year.

Hint: leap years are always exactly divisible by the number 4.

Answer 4

No, but 1916 was a leap year.