Question 1053400
Let c be the cost of the dealer's goods. To make a profit of 20%, he must mark up his price by 1+20%, or 1.2 times the cost. To give the customer a 25% discount, we use:
(1-.25)n=1.2
.75n=1.2
n=1.6
Thus, the dealer has to price his goods at 60% over cost, in order to realize a 20% profit, while offering a 25% discount on the marked price. ☺☺☺☺