Question

The sale price on a camera after a 20% discount is $72. What was the price before the discount.

Answer 1

After 20% discount the price is $72.
That means 72 is 80% of before price. Let it be 'x' .
=> (72)(100)/x = 80
=> x = 72/0.8
=> x = 90
Therefore price of camera before discount is $90.

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Answer 2

Given 80% = $72.

          Then 100% =?

      = 100/80 * $72

      = $90.


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