cost = 1200 x 18 = 21600
selling price at 30 =
.6(1200) x 30 = 21600
hence the 40%sold at 15 is all profit.
so the average profit per radio = .4(1200) x 15 / 1200 = $6
that would be choice E
simple
This topic has expert replies
Source: Beat The GMAT — Problem Solving |












