Question

In each of the following, replace the* with the smallest digit to make itdivisible by 9.
(1) 2* 189​

Answer 1

7

Step-by-step explanation:

2*189

We have to replace * with the smallest digit to .ake it divisible by 9.

Solution :-

We know that,

sum of all digits of number is divisible by 9, so number will be divisible by 9.

So,

sum of

2 + * + 1 + 8 + 9

=> 20 + *

Now if we add 7, the number will be divisible by 9

=> 20 + 7 = 27, it is divisible by 9.

So the smallest digit to make the number divisible by 9 is 7.

The number will be 27189.

hope it helps.