Separate the following numbers which are divisible by 3 but not 9:

702, 213, 294.

Asked by Topperlearning User | 4th Jun, 2014, 01:23: PM

Expert Answer:

First we find the sum of digits of given numbers,

Sum of digits of 702 = 7 + 0 + 2 = 9

Here, 9 is divisible by both 3 and 9.

Thus, 702 is divisible by both 3 and 9.

Sum of digits of 213 = 2 + 1 + 3 = 6

Here, 6 is divisible by 3 but not 9.

Thus, 213 is divisible by 3 but not 9.

Sum of digits of 294 = 2 + 9 + 4 = 15

Here, 15 is divisible by 3 but not 9.

Thus, 294 is divisible by 3 but not 9.

Answered by  | 4th Jun, 2014, 03:23: PM