GMAT
题目
The selling price of an exercise bike represents a 25% markup from its original cost to the merchant
Quantity A
The % the markup is of the selling price
Quantity B
20%
解析
设成本价（CP）为100
该健身自行车的售价，是在商家原始成本基础上加价25%得到的
=> 售价（SP）= 成本价 + 成本价的25%
=> 售价 = 100 + 100的25% = 100 + (25/100) × 100 = 125
=> 加价额 = 售价 - 成本价 = 25
A项：加价额占售价的百分比
(加价额 / 售价) × 100 = (25 / 125) × 100 = 20%
=> A项 = B项
因此，答案为C
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