# maths

What number should be repalced with * in order to make the number 48732*637984 divisible by 9

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1. Division rule for 9 :

Add up all the digits in the number.

Find out what the sum is. If the sum is divisible by 9, so is the number.

In your case:

4 + 8 + 7 + 3 + 2 + * + 6 + 3 + 7 + 9 + 8 + 4 = 61 + *

61 is not a multiple of 9 but 63 is.

Thats mean replase * with 2

Then the sum of numbers = 63 and number is divisible by 9.

Your number is:

487322637984

487322637984 / 9 = 54146959776

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