Question 1208330
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He makes a $135 profit if he sells at a 15% discount of the marked price; he has a loss of $65 if he sells at a 25% discount.<br>
A profit of $135 compared to a loss of $65 represents a change of $200 in the selling price.<br>
That change of $200 results from the additional 10% discount, so 100% of the marked price is $2000.<br>
With a discount of 15% of the marked price, the selling price is 85% of $2000, which is $1700.<br>
He makes a profit of $135 if he sells at a 15% discount, so his cost was $1700-$135 = $1565.<br>
ANSWER: $1565<br>
To check the answer, see that the selling price with a discount of 25% is 75% of $2000, which is $1500; that is $1565-$1500 = $65 less than his cost, giving him a loss of $65.<br>