Question

The price of an article was increased by r% Later the new price was decreased by r%. If the latest price is 1 rupree, then the original price is​

Answer 1

Let I be its initial price.

Then, increasing it by r%,

I+r% ofI=(1+r/ 100) I

Similarly decreasing it by r

(1−r/100)(1+r/100)I=1

I=1 / 1−r²/100²

Answer 2

Step-by-step explanation:

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