Question

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

Answer 1

Answer:

Hey mate your ans here

Let the number is 100

Increase 20% =100+20= 120

Decrease on 20% in 120

=(20/100) * 120 = 24

Net amount = 120 - 24 = 96

So decrease 100-96 = 4

Decrease of 4 out of 100

Percentages of decrease 4%

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Answer 2

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• Let the Number be 100.

➟ 100 × (100 + 20)% × (100 - 20)%

➟ 100 × 120% × 80%

➟ 100 × $\large\tt{\frac{120}{100}}$ × $\large\tt{\frac{80}{100}}$

➟ 100 × $\large\tt{\frac{12}{10}}$× $\large\tt{\frac{8}{10}}$

➟ 1 × 12 × 8

➟ 96%