Question

If 345A is divisible by 3 supply the missing digit in place of A

Answer 1

Answer:

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A number is divisible by 3 when the sum of digits of the number is divisible by 3.

Now, 3+4+5+A+7=19+A

we can see that this sum can be 21,24,27

So, either A=2,A=5,A=8

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