Question

. 1)If 56b is a multiple of 9, then what could be the possible value of b?

Answer 1

Answer:

b equals 7 bcz if we add 5+6+b we got 11+b. We know that if the sum of the number is divisible by 9 then the number also divisible by 9. So 11+ b = 18 bcz 18 is divisible by 9 so b = 7

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Answer 2

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As per divisibility rule for 9 - A number will be divisible by 9 if the sum of its digits is divisible by 9.

So, 5 + 6 + b =11 + b = 18

Therefore b= 7

As 5+6+7 = 18 , 567 is divisible by 9.

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