OG上的一道数学题 求翻译！求讲解！ A pharmaceutical company received $3 million in royalties on the first $20 million in sales of the generic equivalent of one of its products and then $9 million in royalties on the next $108 million in sales. By approximately what percent did the ratio of royalties to sales decrease from the first $20 million in sales to the next $108 million in sales? A.8% B.15% C.45% D.52% E.56%
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发表于 2012-8-15 13:43:13
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