Free Practice Question
PS · Problem Solving
505-555
Absolute Values/Modules
What is the minimum value of |25 - 4y| when y is an integer?
Answer Choices
Correct answer marked belowA
0
1
Correct
C
2
D
3
E
4
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Explanation
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Official Explanation
Official
Given: • y is an integer To find: • The minimum value of |25 – 4y| Approach and Working: • Since this is a modulus expression, it cannot yield a negative result. The smallest value of any modulus expression is 0. • Setting |25 – 4y| = 0 leads to y = 25/4. o As y must be an integer, the…
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Comments
2
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A
AigulSep 21, 2024
This is exactly what I needed to practice
M
MirayaSep 17, 2024
Thank you very much!
What this question tests
What it tests
Your ability to solve absolute-value equations and inequalities by considering both cases.
Common trap
Dropping the absolute value bars entirely or missing that |x| = k has two solutions when k > 0.
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TopicGMAT Quantitative Reasoning
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Difficulty
505-555
Type
PS
Category