Civil Service Exam Reviewer · Percentage · hard
The length of a rectangle is increased by 25% and its width is decreased by 30%. What is the percent change in its area?
- 12.5% decrease
- 5% decrease
- 12.5% increase
- 17.5% decrease
Answer
A. 12.5% decrease
Solution
New area factor = 1.25 × 0.7 = 0.875 → 12.5% decrease.
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