Question

If the sum of the digits of a three digit number is

Let the three digit number be xyz. 100x 10y z -x y z 99x - 9y, which is divisible by both 3 and 9. So, the answer would be option c both 3 and 9

subtracted from that number, then it will always be divisible by

A 3 only

B 9 only

C Both 3 and 9

D All of 3, 6 and 9

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Solution