Question

Identify the number that is a multiple of 9.

3

63

33

78

Answer 1

63

Explanation:

63 - > 3+6 = 9 as 6+3 = 9 then 63 is a multiple of 9

33 - > 3+3 = 6

78 - > 7+8 = 15 -> 1+5 = 6

Answer 2

The number is :

↬ 63

Solution:

Let's quickly check what numbers are divisible by 9.

3 can't be evenly divisible by 9.

63 is divisible (according to the multiplication table)

33 isn't divisible by 9 either

78 is no different.

Hence, a multiple of 9 is 63.

Quick way to identify multiples of 9 :

If the digits of the number add up to 9, then the number itself is a multiple of 9.