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　　GMAT数学每日一练

　　A furniture dealer purchased a desk for$150 and then set the selling price equal to the purchase price plus a markupthat was

　　40 percent of theselling price. If the dealer sold thedesk at the selling price, what was the amount of the dealer's gross profitfrom the purchase and the sale of the desk?

　　(A) $40

　　(B) $60

　　(C) $80

　　(D) $90

　　(E) $100

　　答案见下一页