Question

Fill in the blank with the correct number.

A number is divisible by ________ if the sum of its digits is divisibly by three.
A. 2
B. 3
C. 9
D. Both 3 and 9

Answer 1

B

Explanation:

Answer 2

Answer: B. 3

Explanation:

Take 27 for example, 2+7=9

27 is divisible by 3 and 9 BUT then you can try 300

3+0+0=3

300 can be divisible by 3 so the only one that is correct is B. 3