Question

A number is increased by 20%and then it is decreased by 10%.Find the net increase or decrease percent.

Answer 1

Answer:

Net increase is a 150 percent

Answer 2

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• Let the Number be 100.

➟ 100 × (100 + 20)% × (100 - 10)%

➟ 100 × 120% × 90%

➟ 100 × $\large\tt{\frac{120}{100}}$ × $\large\tt{\frac{90}{100}}$

➟ 100 × $\large\tt{\frac{12}{10}}$× $\large\tt{\frac{9}{10}}$

➟ 1 × 12 × 9

➟ 108%