Question

Find the original cost of a rocker selling for $159.95 at 20% off.

Answer 1

We can use proportion here. As we know, cost of a rocker is now 80% of original.
So:

`159.95$------------------80%` crossmultiplying

`x---------------------------100%`


`x= (159.95*100)/(80)=199.94` - aswer