Mathematics · Percentage
The strength of a school increases and decreases every alternate year by 20%. It started with an increase in 2018. What is the strength of the school at the start of 2021 as compared to that of 2018?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Increase by 15.2%✓
- 2Decrease by 16.2%
- 3Increase by 16.2%
- 4Decrease by 15.2%
Correct answer
Increase by 15.2%
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