Question

a679b is divisible by 72 find a and b

Answer 1

Hiiii.....

We know that a & b are one of the numbers between 0-9

So, Take a multiple have the mid numbers as 679.

I. e., 36792...

Therefore ,

a = 3

b = 2.

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Answer 2

72 is multiple of 9 and 8 ..so , divisible by 8 and 9


For A679B to be divisible by 8,

last three digits must be divisible by 8

> 79b is divisible by 8

=> b=2 is the only solution

For the number to be divisible by 9,

the sum of all digits must be divisible by 9


=> A + 6 + 7 + 9 + 2 must be divisible by 9


=> A + 24 must be divisible by 9

=> A = 3


=> the number is

36792.

Hope this will help...