求PREP-PS-2-85

jesuisdesole

85.   9649-!-item-!-187;#058&007038

Of the 800 employees of Company X, 70 percent have been with the company for at least ten years.  If y of these "long-term" members were to retire and no other employee changes were to occur, what value of y would reduce the percent of "long-term" employees in the company to 60 percent?

 

(A) 200

(B)  160

(C)  112

(D)  80

(E)  56

答案A

我自认为这题目挺简单的啊

800*70%-800*60%=80

通通快快选了一D, 结果答案是A

不知道自己思路错哪了

请高人讲解