Free Practice Question
PS · Problem Solving
sub-505
Divisibility/Multiples/Factors
If a positive integer m is divided by 50, it leaves a remainder of 20. Which of the following must be a divisor of m?
Answer Choices
Correct answer marked belowA
12
10
Correct
C
8
D
6
E
3
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Explanation
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Official Explanation
Official
We can express m as [m]m=50k+20=10(5k+2)[/…
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Comments
2
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B
BriannaJun 18, 2024
good question
N
NeelakshiFeb 2, 2025
Greatt
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