Question

A number is increased by 30% and then it is decreased by 30%. Find the net increase or decrease per cent.​

Answer 1

Answer:

9% decrease is correct answer

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

There is net decrease of 9%.

Step-by-step explanation:

Since we have given that

A number is increased by 30%.

Then a number is decreased by 30%.

Let x = 30%

y = -30%

So, the net increase or decrease percent would be

x - y = x/y

30 - 30 = (30×30) ÷ 100

(-900) ÷ 100 = (-9)

Hence, there is net decrease of 9%.

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