Free Practice Question
PS · Problem Solving
705-805
percent
Anita started working in January 2014 and used to save 20% of her monthly salary. Her salary increased by 100% in January 2015 and by 200% in January 2016, and her expenses doubled over the two years. What was the percentage increase in her monthly savings between February 2014 and February 2016?
Answer Choices
Correct answer marked belowA
320%
B
500%
C
600%
2100%
Correct
E
2200%
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Explanation
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Official Explanation
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Let initial monthly salary = .
February 2014: savings = 20% of = .
January 2015: salary increases 100% → new salary = .
January 2016: salary increases 200% → new salary = (so February 2016 salary = ).
Initial expenses = .…
February 2014: savings = 20% of = .
January 2015: salary increases 100% → new salary = .
January 2016: salary increases 200% → new salary = (so February 2016 salary = ).
Initial expenses = .…
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What it tests
Your ability to apply GMAT math concepts to solve a multi-step problem quickly and accurately. At the 705-805 level, accuracy and speed both matter.
Common trap
Overcomplicating the setup — most GMAT problems reward a direct, organized approach over brute calculation.
Related GMAT Topic Guides
Quant
TopicGMAT Quantitative Reasoning
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Difficulty
705-805
Type
PS
Category