算提成的一道题目其实挺简单的说还是放出来看看

sunyuwei

A salesperson received a 6-percent commission on the amount of total sales up to and including $10,000, and an r-percent commission on the amount of total sales over $10,000.If the salesperson received a total commission of $920 on total sales of $14,000, what was the value of r?
A.3.2
B.4.3
C.6.6
D.8.0 正确
E.9.2

那啥大家看一下划线句，作为一个正常的中国人我知道是低于10000的按某一个比例算提成，超过10000刀的按照r的比率算。但是仔细分析一下句子，over 10000刀修饰的是the amount of total sales,也就是说超过10000刀的total sales用r 这个比率算，也就是14000总的销售额乘这个比率。前两天模考的时候确实也做到了整个数量乘比率的一道题==原题找不到了悲剧==有分析一下的么~

sunyuwei

再顶一次~~

sunyuwei

dddddddddd..........

sunyuwei

DDDDDDDD....