Chapter CSB1.1, Problem 22E

To determine

Whether 2000, 2004, 2015, 2018,2022 and are leap year of not.

Answer to Problem 22E

2000 − Leap year

2004 − leap year

2015 − not a leap tear

2018 − not a leap year

2022 - not a leap year

2032 - leap year

Explanation of Solution

Given:

Leap years are divisible by 4.

Also year ending with 00 and divisible by 400 are leap year.

For 2000,

As 2000 ends with 00 and it is divisible by 400. So, it is a leap year.

For 2004,

As 2004 is divisible by 4. So, it is a leap year.

For 2015,

Neither end with 00 nor divisible by 4. So, it is not a leap year.

For 2018,

Neither end with 00 nor divisible by 4. So, it is not a leap year.

For 2022,

Neither end with 00 nor divisible by 4. So, it is not a leap year.

For 2032,

It is divisible by 4. So, it is a leap year.