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Of the 800 employees of company X, 70% have been with the

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Manager
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Of the 800 employees of company X, 70% have been with the [#permalink] New post 03 Aug 2007, 19:01
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Question Stats:

45% (02:48) correct 55% (01:43) wrong based on 57 sessions
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

OPEN DISCUSSION OF THIS QUESTION IS HERE: of-the-800-employees-of-company-x-70-percent-have-been-with-93778.html
[Reveal] Spoiler: OA
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Director
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Re: Of the 800 employees of company X, 70% have been with the [#permalink] New post 03 Aug 2007, 20:05
abhi_ferrari wrote:
Of the 800 employees of company X, 70% 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 % of long term employees in the company to 60%?

200
160
112
80
56

I get D

560-y/800 = 6/10
Solve for y
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Re: Of the 800 employees of company X, 70% have been with the [#permalink] New post 03 Aug 2007, 20:33
ggarr wrote:
abhi_ferrari wrote:
Of the 800 employees of company X, 70% 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 % of long term employees in the company to 60%?

200
160
112
80
56

I get D

560-y/800 = 6/10
Solve for y


I also got D. OA is A!
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Re: Of the 800 employees of company X, 70% have been with the [#permalink] New post 03 Aug 2007, 20:42
abhi_ferrari wrote:
ggarr wrote:
abhi_ferrari wrote:
Of the 800 employees of company X, 70% 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 % of long term employees in the company to 60%?

200
160
112
80
56

I get D

560-y/800 = 6/10
Solve for y


I also got D. OA is A!

yes. OA is A
560-y/800-y = 6/10
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Re: Of the 800 employees of company X, 70% have been with the [#permalink] New post 03 Aug 2007, 20:43
(560-y)/(800-y) = 6/10

y=200

A
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Re: Of the 800 employees of company X, 70% have been with the [#permalink] New post 03 Aug 2007, 23:39
# of long term workers = 70/100 * (800) = 560

If y of the long term workers retired, then only 560-y long term workers left, and # of total employees = 800-y

So , we want (560-y)/(800-y) * 100 = 60

560-y = 480 - 0.6y
80 = 0.4y
y = 200
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Re: Of the 800 employees of company X, 70% have been with the [#permalink] New post 22 Jul 2015, 22:34
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Re: Of the 800 employees of company X, 70% have been with the [#permalink] New post 23 Jul 2015, 01:04
Expert's post
abhi_ferrari wrote:
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


The # of "long-term" employees is 70%*800=560.

After y of them retire new # of "long-term" employees would become 560-y.
Total # of employees would become 800-y.

We want 560-y to be 60% of 800-y --> 560-y=(800 -y)*60% --> y = 200.

Answer: A.

OPEN DISCUSSION OF THIS QUESTION IS HERE: of-the-800-employees-of-company-x-70-percent-have-been-with-93778.html
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Re: Of the 800 employees of company X, 70% have been with the   [#permalink] 23 Jul 2015, 01:04
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