请教Prep ps1-71 (8312-!-item-!-187;#058&005967)

floraxycn

71.   8312-!-item-!-187;#058&005967

On July 1 of last year, the total number of employees at Company E was decreased by 10 percent.  Without any change in the salaries of the remaining employees, the average (arithmetic mean) employee salary was 10 percent more after the decrease in number of employees than before the decrease.  The total of the combined salaries of all of the employees at Company E after July 1 last year was what percent of that before July 1 last year?

(A) 90%

(B) 99%

(C) 100%

(D) 101%

(E) 110%

答案是B.

题目理解很模糊，请问combined salaries是什么意思？答案怎么算的？谢谢！

floraxycn

自己顶一下，大家帮帮忙啊!