Question

For what values of the digit m is the number 86m5 divisible by 3? Find all such numbers also

Answer 1

We know that if a number is divisible by 3, then then the sum of the digits should also be divisible by 3.

So, 19 + m should be a multiple of 3.

Thus, all the possible values of m are 2, 5 and 8.

HOPE THIS COULD HELP!!!

Answer 2

Given :  

86m5  is divisible by 3

To Find : All possible values of  m

Solution:

86m5  is divisible by 3

A number is divisible by 3 if sum of its digit  is divisible by 3

Hence 8 + 6 + m  + 5    divisible by 3

19 + m  is divisible by 3

Hence possible values of m  , 2 , 5 , 8

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