alleryAdding the digits of 492 gives which sum for the test of 3?
A13
B14
C15
D16
Answer & Solution
Correct answer: C. 15
1. Add each digit: 4 + 9 + 2.
2. This equals 15, and 15 is divisible by 3.
3. So 492 is divisible by 3 (492 / 3 = 164). The other sums come from adding wrongly.
_Source: Wikipedia, Divisibility rule, section Divisibility by 3 or 9_
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