Free Practice Question
PS · Problem Solving
505-555
Percentages
If s is 30 percent greater than t and if r is 20 percent less than s, then r is what percent greater than t ?
Answer Choices
Correct answer marked below4%
Correct
B
5%
C
6%
D
8%
E
10%
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Explanation
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What it tests
Your ability to compute percentage change, percentage of a whole, and to work backwards from a final value.
Common trap
Treating successive percentage changes as additive — a 10% rise then a 10% fall is not back to the start.
Details
Difficulty
505-555
Type
PS
Category