Question

a number is first increased by 20% and then it is decreased by 20% find the net interest or decrease percent.​

Answer 1

Answer:

here is ur answer

Step-by-step explanation:

0 percent net interest

Answer 2

Step-by-step explanation:

Let the number be = 100

Increase in number = 20% of 100

$\frac{20}{100} \times 100 \: = \: 20$

Increased number = 100 + 20 = 120

The resulting number decreased by 20%

Decrease in number =

$\frac{20}{120} \times 100 \: = 24$

New number = 120 - 24 = 96

Now net decrease = 100 - 96

$\: net\% \: of \: decrease \: = \: \frac{net \: decrease}{original \: number} \times 100$

$\frac{4}{100} \times 100 = 4\%$

So our answer is 4%