Civil Service Exam Reviewer · Percentage · hard
The length of a rectangle is increased by 50% and its width is decreased by 50%. What is the percent change in its area?
- No change
- 25% decrease
- 25% increase
- 30% decrease
Answer
B. 25% decrease
Solution
New area factor = 1.5 × 0.5 = 0.75 → 25% decrease.
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