Question

An appliance store reduced the price of a refrigerator by 20% and then raised the price by 10% from the lower price. What was the original price of the refrigerator, if the final price was $70.40?

Answer 1

`$80`

Explanation:

A drop of 20 % means find 80% = `xx 0.8`
An increase of 10% means find 110% = `xx 1.1`

Let the original price be `x`. We can follow what was done to this price in the form of an equation.

Decreased by 20% then raised by 10%..

`x xx0.8 xx1.1 = 70.40" "` Now just solve for `x`

`x = 70.40/(0.8 xx1.1`

=`$80`