Is 5,625 divisible by 3?
ANo, since it does not end in 0, 3, or 6
BYes, since 5 plus 6 plus 2 plus 5 equals 18
CYes, since it is an odd number overall
DNo, since 18 is not divisible by 5
Answer & Solution
Correct answer: B. Yes, since 5 plus 6 plus 2 plus 5 equals 18
1. The divisibility test for 3 checks whether the sum of the digits is divisible by 3.
2. The digits of 5,625 add up to 5 plus 6 plus 2 plus 5, which equals 18.
3. Since 18 is divisible by 3, so is 5,625.
_Source: OpenStax Elementary Algebra (CC BY 4.0), Ch 1 "Foundations", section 1.1 Introduction to Whole Numbers_
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