Question

In each of the following numbers, replace * by the smallest number to make it divisible by 9
2*135

Answer 1

Answer:

Rule for divisiblity by 9

=> if (sum of digits of given number) is divisible by 9

Sum of digits of given number = 2+*+1+3+5 = 11 + *

The multiple of 9 nearest to 11 is 18.

So, * can be replaced by 18 - 11 = 7.