Question

The price of an article is reduced by 20%. By how much percent this value be
increased to restore it to its former value?

Answer 1

Answer:

Let X be the original price. Then the 20% reduced price is 0.8X. To restore 0.8X to X, you need to add one fourth of 0.8X to 0.8X. It means that you need to increase 0.8X by 25%.

Step-by-step explanation:

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