Question

What least number should be replaced for * so that the number 67301 * 2 is exactly divisible by 9? a) 5 b) 6 c) 7 d) 8

Answer 1

Step-by-step explanation:

A number is divisible by 99 if the sum of its digits is divisible by 99.

Now, Sum of the digits in given number is =6+7+3+0+1+2=19=6+7+3+0+1+2=19, which is not divisible by 99.

But, if we add 88 to this sum, it becomes 19+8=2719+8=27, which is divisible by 99

So, the least number is 88 which should replace for ∗∗ in the given number. So, 67301826730182 is divisible by 9