Given Data

1. Given century years: 1800, 1900, 2000, 2100.

Question

Which of the given century years is a leap year?

Answer

2000.

Solution

1. Recall the century leap year rule:
2. A century year (ending in 00) is a leap year ONLY if it is divisible by 400.
3. Check each year:
4. 1800 / 400 = 4.5 (Not divisible -> Ordinary year).
5. 1900 / 400 = 4.75 (Not divisible -> Ordinary year).
6. 2000 / 400 = 5 (Exactly divisible -> Leap year).
7. 2100 / 400 = 5.25 (Not divisible -> Ordinary year).
8. Therefore, 2000 is the only leap year among the choices.