Use some thinking to answer the following question. A pharmaceutical company received $4 million in royalties on the first $50 million in sales of and then $12 million in royalties on the next $170 million in sales. By approximately what percentage did the ratio of royalties to sales decrease from the first $50 million in sales to the next $170 million in sales?\nOptions:\n(A) 12%\n(B) 15%\n(C) 45%\n(D) 52%\n(E) 56%
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(12/170)/(4/50) = 15/17 = 88% it means that 12/170 represents only 88%. Therefore a decrease of 12%. So the final answer is (A).
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