Civil Service Exam Reviewer · Percentage · hard
The length of a rectangle is increased by 30% and its width is decreased by 40%. What is the percent change in its area?
- 22% decrease
- 10% decrease
- 22% increase
- 27% decrease
Answer
A. 22% decrease
Solution
New area factor = 1.3 × 0.6 = 0.78 → 22% decrease.
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