 |
| ||
| |||
|
| Math Central | Quandaries & Queries |
|
Question from stephanie, a student: A car is marked up 30% from its wholesale price. During a sale the retail price is reduced by 20%. What percent higher is the sale price from the wholesale price. |
Hi Stephanie,
If the wholesale price is $W and you mark it yo 30% then the retail price $R is given by
$R = $W + 0.30 × $W = 1.3 × $W.
If the retail price is $R and you reduce it by 20% then the sal price $S is given by
$S = $R - 0.20 × $R = 0.80 × $R.
Hence the sale price is
$S = 0.80 × $R = 0.80 ×1.3 × $W
Penny
| ||
| ||
| ||
 |
 |
|
Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences.