- A21%
- B10%
- C20%
- D11%
Step-by-Step Solution
Take side 10 cm: area . New side 11 cm: area . Increase = on 100, i.e. 21%. Both sides grow, so it is more than 20%.
Answer: A) 21%
Each side of a square tile is increased by 10%. By what percent does its area increase?
Class 7Percentage Increase and DecreaseComparing Quantities
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