If the number 517 * 324 is completely divisible by 3, then the smallest whole number in the place of * will be: Select:
A) 1 B) 2 C) 3 D) 4 E) 5
B   2   Sum of digits = (5 + 1 + 7 + x + 3 + 2 + 4) = (22 + x), which must be divisible by 3.   x = 2.
<result>B</result>
If the number 517 * 324 is completely divisible by 3, then the smallest whole number in the place of * will be: