Free Practice Question
PS · Problem Solving
sub-505
Divisibility/Multiples/Factors
Which length of a side of a square results in a perimeter that can be evenly divided by both 5 and 8?
Answer Choices
Correct answer marked belowA
2
B
3
C
4
10
Correct
E
12
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Explanation
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Official Explanation
Official
To find a perimeter divisible by both 5 and 8, we calculate the least common multiple (LCM) of 5 and 8, which is 40. Therefore, the perimeter must equal 40, and…
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Comments
2
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P
PatrickFeb 8, 2024
good question
N
NhiFeb 4, 2025
Thank you very much!
What this question tests
What it tests
Your understanding of divisibility rules, least common multiples, and greatest common factors.
Common trap
Forgetting that 1 is not prime and that every integer divides 0.
Details
Difficulty
sub-505
Type
PS
Category