Question

If a number is increased by 20% and then the increased number is decreased by 20% then the overall change in number is .

Answer 1

HEY Buddy.....!! here is ur answer

$x + y + \frac{xy}{100} \\ \\ = > 20 + (-20) + \frac{20 \times (-20)}{100} \\ \\ = > - 4$

It means the number will be decreased by 4%

I hope it will be helpful for you...!!

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