Civil Service Exam Reviewer · Basic Operations · hard

What is the smallest positive number that leaves a remainder of 2 when divided by 8, 4 or 10?

1. 40
2. 42
3. 38
4. 322

Answer

B. 42

Solution

LCM(8, 4, 10) = 40. Add the remainder: 40 + 2 = 42.

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