Mathematics · Percentages
The student population of a school increases and decreases by 20% every alternate year. This sequence began with an increase in 2015. Find the percentage change in the student population at the beginning of 2018 compared to the beginning of 2015.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 115.2% increase✓
- 215.2% decrease
- 316.5% increase
- 416.5% decrease
Correct answer
15.2% increase
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