Question

The number which is divisible by both 4 and 5 is

• A. 240
• B. 145
• C. 110

Answer 1

The correct option is A 240

For a number to be divisible by 4, the last two digits of a number should be divisible by 4 and for a number to be divisible by 5, the last digit of the number should be either 0 or 5, hence it is divisible by 5.

Case 1:
110 : Last digit is 5 so, divisible by 5 but the last two digits is 10 which is not divisible by 4.

Case 2:
240 : Last digit is 0 so, divisible by 5 and the last two digits is 40 which is divisible by 4.

Case 3:
145 : Last digit is 5 so, divisible by 5 and the last two digits is 45 which is not divisible by 4.

Thus, only 240 is divisible by both 4 and 5.