A 168 ounce shampoo bottle is labeled Now 40 more free and s

A 16.8 ounce shampoo bottle is labeled \"Now 40% more free!\" and sells for $14.00. What is the price per ounce of the original shampoo?

Solution

Let orignal shampoo =x

then

x+ 0.4x = 16.8

1.4x=16.8

x=16.8/1.4

x=12

So, the price per ounce is 14/12 =$1.17