Question

In each of the following numbers, replace * by the smallest number to make it divisible by 3:

(i) 75 * 5
(ii) 35 * 64
(iii) 18 * 71

Answer 1

We can replace the * by the smallest number to make the given numbers divisible by 3 as follows:
(i) 75*5 = 7515
As 7 + 5 + 1 + 5 = 18, it is divisible by 3.
(ii) 35*64 = 35064
As 3 + 5 +6 + 4 = 18, it is divisible by 3.
(iii) 18*71 = 18171
As 1 + 8 + 1 + 7 + 1 = 18, it is divisible by 3.