Question

Which of the following numbers is completely divisible by 99?

A) 51579 B) 51557 C) 55036 D) 49984

Answer 1

Answer:

Here is your answer

99= 11×9

so, a number divisible by 99 is also divisible by both 11 and 9

Now applying divisibility rule of 9 and 11 in each given options -

In a) 51579

5+1+5+7+9=27

27 is divisible by 9

So, given no. is divisible by 9

and, 9+5+5 and 7+1

198

1+8 and 9

99

99 is divisible by 11

so, given no. is also divisible by 11

Hence, 51579 is divisible by 99