If the number 481 * 673 is completely divisible by 9, then the smallest whole number in place of * will be:

Question:
If the number 481 * 673 is completely divisible by 9, then the smallest whole number in place of * will be:

[A].

2

[B].

5

[C].

6

[D].

7

Answer: Option D

Explanation:

Sum of digits = (4 + 8 + 1 + x + 6 + 7 + 3) = (29 + x), which must be divisible by 9.

   x = 7.