Question

Divisibility of a number by 2, 5, 10 can be checked by which of the following ?

• A. Sum of digits
• B. Last digit
• C. Second last digit
• D. Sum of last two digits

Answer 1

The correct option is B Last digit

If a number is divisible by 2, then it's last digit will be an even number.

If a number is divisible by 5, then it's last digit will be either 0 or 5.

If a number is divisible by 10, then it's last digit will be 0.

Hence divisibility by 2, 5,10 can be checked by looking at the last digit of the given number.

So option 'a' is the answer.