Question

Select the statements that are true.

• A. A number is divisible by 5 if its unit's digit is either 0 or 5.
• B. Every number which is divisible by 3 is also divisible by 9.
• C. Every number ending with 2 is divisible by 4.
• D. 4050 is divisible by 5.

Answer 1

Answer: (A), (D)

The correct options are
A

A number is divisible by 5 if its unit's digit is either 0 or 5.

D

4050 is divisible by 5.

A number is divisible by 5 if its unit's digit is either 0 or 5.

For example: 4050 is divisible by 5 as the unit's digit is 0.

Every number which is divisible by 9 is also divisible by 3 as 3 is a factor of 9, but the reverse of this is false as there are many numbers which are divisible by 3 but not divisible by 9 for example 3, 6, 12 ans so on.

For a number to be divisible by 4, the last two digits of the number should be divisible by 4. So, every number ending with 2 need not be divisible by 4.
e.g: 12 is divisible by 4 but 22 is not divisible by 4