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

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Manager
Joined: 07 Feb 2007
Posts: 54
Of the 800 employees of company X, 70% have been with the [#permalink]

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03 Aug 2007, 20:01
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85% (hard)

Question Stats:

50% (02:29) correct 50% (01:25) wrong based on 176 sessions

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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
Director
Joined: 12 Jun 2006
Posts: 532
Re: Of the 800 employees of company X, 70% have been with the [#permalink]

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03 Aug 2007, 21:05
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
Manager
Joined: 07 Feb 2007
Posts: 54
Re: Of the 800 employees of company X, 70% have been with the [#permalink]

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03 Aug 2007, 21:33
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!
Director
Joined: 12 Jun 2006
Posts: 532
Re: Of the 800 employees of company X, 70% have been with the [#permalink]

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03 Aug 2007, 21:42
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
VP
Joined: 28 Mar 2006
Posts: 1369
Re: Of the 800 employees of company X, 70% have been with the [#permalink]

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03 Aug 2007, 21:43
(560-y)/(800-y) = 6/10

y=200

A
GMAT Club Legend
Joined: 07 Jul 2004
Posts: 5043
Location: Singapore
Re: Of the 800 employees of company X, 70% have been with the [#permalink]

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04 Aug 2007, 00:39
# 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
GMAT Club Legend
Joined: 09 Sep 2013
Posts: 15961
Re: Of the 800 employees of company X, 70% have been with the [#permalink]

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22 Jul 2015, 23:34
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Math Expert
Joined: 02 Sep 2009
Posts: 39662
Re: Of the 800 employees of company X, 70% have been with the [#permalink]

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23 Jul 2015, 02:04
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Expert's post
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BOOKMARKED
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.

OPEN DISCUSSION OF THIS QUESTION IS HERE: of-the-800-employees-of-company-x-70-percent-have-been-with-93778.html
_________________
Re: Of the 800 employees of company X, 70% have been with the   [#permalink] 23 Jul 2015, 02:04
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# Of the 800 employees of company X, 70% have been with the

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