PP-T2-PS85

[little8]

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

Ans:A

[amazingslim]

800*70%=560
560-y/800-y=60%
y=200

[little8]

what value of y would reduce the percent of "long-term" employees in the company to 60 percent?

800*70%=560
560-y/800-y=60%
y=200

對不起,我看得沒有很懂,
1.請問題目要求什麼呢?
我的理解是:走了多少y的資深員工,將減少資深員工到全公司的60%?
是不是有理解錯誤?
2.560-y/800-y=60%=>這是什麼意思呢??

感謝再協助解惑哩!!!

[amazingslim]

你的理解沒有錯
(560-y)/(800-y)=60%
=>本來公司是560個資深員工，走了y個資深員工，剩下的資深員工佔公司60%

[little8]

了解!!感謝 ^^
沒有把"剩下的"總體員工想進來... >"<

粗心+1阿~~~~~