Divisilibility tests for 8

Q. Which of the following numbers is not divisible by 8?

1. 9960
2. 4512
3. 7728
4. 1873

Q. Pair the following as per divisibility rules.

1. last 3 digits
2. last 2 digits
3. units digit
4. sum of digits

Q. A number is said to be divisible by 4 if the number formed by _______ of the number is divisible by 4.

1. sum of last two digits
2. last two digits
3. units digit
4. sum of all digits