If the number 517*324 is completely divisible by 3, then the smallest whole number in the place of * will be:

Question: If the number 517*324 is completely divisible by 3, then the smallest whole number in the place of * will be:
[A].

0 

[B].

1

[C].

2

[D].

None of these

Answer: Option C

Explanation:

Sum of digits = (5 + 1 + 7 + x + 3 + 2 + 4) = (22 + x), which must be divisible by 3.

  x = 2.