GWD09-Q14

[jhchiou]

Q14: 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%

ans: C

奇怪?? 看來很簡單, 但是我找不到答案???

[Calvin]

題目是不是看錯了？

題目是要求比率下降的百分比

即求3/20 ----> 9/108 percent of decrease

= (3/20 - 9/108) / (3/20) = 4/9 = 45%

[jhchiou]

謝謝指點....我看錯題目了....

[becker]

請問一下，常常被這種分母不知道該放 3/20 或 9/108所困惑，有沒有人能敎我一下，感恩! 文字上的敘述有什麼不一樣，如果分母放9/108，這問題要怎麼問？

[liwuu]

請問一下，常常被這種分母不知道該放 3/20 或 9/108所困惑，有沒有人能敎我一下，感恩! 文字上的敘述有什麼不一樣，如果分母放9/108，這問題要怎麼問？

取決於基期者為分母
以本題為例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
從$20 million in sales 到 $108 million in sales
所以基期為$20 million in sales這一項(放分母)

[fsab00037748]

讚耶..我也是那種常搞不清楚分母該放什麼的, 會花很多時間在想這個.
那請問還有其他的例子嗎?
印象中好像好幾種說法@@!