2. 外语
  3. The annual stockholders’ report for Corporation X stated that profits were up 10 percent over the previous year，although profits

The annual stockholders’ report for Corporation X stated that profits were up 10 percent over the previous year，although profits

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问题 The annual stockholders’ report for Corporation X stated that profits were up 10 percent over the previous year，although profits as a percent of sales were down 10 percent．Total sales for that year were approximately what percent of sales for the previous year?
选项 A、78％
B、90％
C、110％
D、122％
E、190％
答案D
解析 Let P1 and S1 be the profit and sales for the previous year, and let P2 and S2 be the profit and sales for the following year. It is given that  P2=1.1P1and P2/S2= 0.9(P1/S1). Substituting the first equation into the second equation gives
Therefore, S2 is approximately 122% of S1.
The correct answer is D.
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