Question

15. Replace A by the smallest number to make it divisible by 9 in 78A2. Please answer, help, it's urgent!

Answer 1

Answer:

If the sum of the digits of a number is divisible by 9, then the number is divisible by 9.

7 + 8 + A + 2

17 + A

we know 17 is not divisible by 9

So we need to add 1 to make the number divisible by 9

17 + 1 = 18 which is divisible by 9

Hence A = 1 ( smallest number

Answer 2

sum of the digits of a number is divisible by 9, then the number is divisible by 9.

7 + 8 + A + 2

17 + A

we know 17 is not divisible by 9

So we need to add 1 to make the number divisible by 9

17 + 1 = 18 which is divisible by 9

Hence A = 1 ( smallest number

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