a leap year occurs when the year is divisble by 100 but not divisible by 400 are not leap years. determine whether the following years are leap years

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a leap year occurs when the year is divisble by 100 but not divisible by 400 are not leap years. determine whether the following years are leap years

a.1997 b.2004
c.1970 d.2010
e.1776 f.1800

the answer is yes

To determine whether a year is a leap year, you need to consider a few rules. According to the rule you mentioned, a leap year occurs when the year is divisible by 4. However, if the year is divisible by 100, it is not a leap year unless it is also divisible by 400. Let's apply these rules to determine whether the following years are leap years:

1) 2020:
- Firstly, check if it is divisible by 4: 2020 ÷ 4 = 505 (no remainder)
- Next, check if it is divisible by 100: 2020 ÷ 100 = 20 (no remainder)
- Finally, check if it is divisible by 400: 2020 ÷ 400 = 5 (no remainder)

Since all the conditions are met, the year 2020 is a leap year.

2) 1900:
- Firstly, check if it is divisible by 4: 1900 ÷ 4 = 475 (no remainder)
- Next, check if it is divisible by 100: 1900 ÷ 100 = 19 (no remainder)
- Finally, check if it is divisible by 400: 1900 ÷ 400 = 4 (no remainder)

Although the first condition is met, the year is divisible by 100 and not by 400, so the year 1900 is not a leap year.

3) 2000:
- Firstly, check if it is divisible by 4: 2000 ÷ 4 = 500 (no remainder)
- Next, check if it is divisible by 100: 2000 ÷ 100 = 20 (no remainder)
- Finally, check if it is divisible by 400: 2000 ÷ 400 = 5 (no remainder)

Since all the conditions are met, the year 2000 is a leap year.

So, from the given years, 2020 and 2000 are leap years, while 1900 is not a leap year.