An antiques dealer purchased three cabinets at three distinct costs last year and resold all three of those cabinets for three distinct prices this year. If the median price was received for the cabinet that had cost the median amount, and the antiques dealer made a 10% profit on that cabinet, did the dealer make more than a 10% profit margin on any one of the three cabinet sales?The passage tells us that the antiques dealer made a 10% profit on the cabinet that cost the median amount. So, we know that the dealer did not make more than a 10% profit on the median cost cabinet. Thus, to answer the question, we have to determine whether we can tell for sure whether the dealer made more than a 10% profit on either of the other two cabinets.(1) One of the cabinets sold for a price less than its original cost.We know from the passage that one cabinet was sold for a 10% profit and that that cabinet was sold for the median selling price.Now, this statement tells us that one of the cabinets sold for a price less than its original cost.We are still left not knowing whether the third cabinet was sold for a greater than 10% profit.
After all, the cabinet that was sold for less than its cost could have been the cabinet with the lowest cost. In that case, the highest priced cabinet could have been sold for a profit that was greater or less than 10%.
Alternatively, the cabinet that was sold for less than its cost could have been the highest priced cabinet, which could have cost much more than the median cost cabinet, in which case the highest cost cabinet could still have sold for a price greater than the median selling price. Also, the lowest priced cabinet could cost have much less than the median cost cabinet and thus had room to sell for more or less than a 10% profit and still have been sold for less than the median selling price.
So, essentially, this statement tells us that a second cabinet was sold for a profit less than 10% but leaves open the possibility that the third could have been sold for a profit greater or less than 10%.
Insufficient.
(2) The cabinet that sold for the lowest price was the one that cost the antiques dealer the most to purchase.This statement tells us that the lowest selling price was that of the highest cost cabinet.
We already know that the median cost cabinet sold for the median price.
Thus, the lowest cost cabinet must have sold for more than the median price. After all, only in that way would the selling price of the median cost cabinet have been between the selling prices of the other two.
In that case, since the median cost cabinet was sold for a 10% profit, the lowest cost cabinet must have been sold for a profit greater than 10%. After all, the lowest cost cabinet's cost was lower than that of the median cost cabinet, and its selling price was higher than that of the median cost cabinet.
Sufficient.
Correct answer: B