On July 1 of lastyear, the total number of employees at Company E was decreased by 10percent. Without any change in thesalaries of the remaining employees, the average (arithmetic mean) employeesalary was 10 percent more after the decrease in number of employees thanbefore the decrease. The total of thecombined salaries of all of the employees at Company E after July 1 last yearwas what percent of that before July 1 last year?
90%
99%
100%
101%
110%
假设原来是100人,平均薪水X元/人,现在是90人,平均是1.1X元/人,这样算就是99%。不知道这样理解对不对。
不明白这一句: Without any change in thesalaries of the remaining employees的目的是什么
就是剩下员工的工资没变(七月以后没涨工资,也没减工资)呗。变了的话就算不出来啦。
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