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# I'm new to this community, what do you suggest is the best

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Manager
Joined: 17 Aug 2006
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I'm new to this community, what do you suggest is the best [#permalink]  24 Mar 2007, 10:42
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Difficulty:

(N/A)

Question Stats:

40% (02:37) correct 60% (01:06) wrong based on 6 sessions
I'm new to this community, what do you suggest is the best way for me to post my questions? I need lots of help with quant. Should I find a thread to post my question or is there a general place to place your questions. Below is a sample of a question, where would place this?

Of the 3,600 employees of Co X, 1/3 are clerical. If the clerical staff were to be reduced by 1/3, what percent of the total number of the remaining employees would then be clerical?

ANS
A) 25%
B) 22.2%
C) 20%
D) 12.5%
E) 11.1%

MY ISSUE IS FINDING A QUICK METHOD TO COMPUTE THIS PROBLEM
VP
Joined: 22 Oct 2006
Posts: 1443
Schools: Chicago Booth '11
Followers: 7

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Welcome, just post the question and the choices

Let's see, the way I did it was

1/3 are clerical out of 3600 so 1200 are clerical

1200 reduced by 1/3 is 1200*1/3

so it reduced 400 people , so there is 800 clerical people left

but since 400 people left, it also reduced from the total of 3600 so there are 3200 people total

since 800 clerical left / 3200 people total

you get (A) 25%
Intern
Joined: 02 Mar 2010
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Re: NEW TO COMMUNITY [#permalink]  04 Mar 2010, 01:37
Why do you divide by 3200 (= 3600-400) ?

May be it's due to my english skills and my understanding of "the clerical staff were to be reduced by 1/3" : I thought that the 400 persons were no more clerical but STILL employees of company X !

Thanks for explaining
Intern
Joined: 23 Feb 2010
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Re: NEW TO COMMUNITY [#permalink]  04 Mar 2010, 12:27
what percent of the total number of the remaining employees would then be clerical?

The questions states "remaining employees".
Intern
Joined: 02 Mar 2010
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Re: NEW TO COMMUNITY [#permalink]  08 Mar 2010, 00:21
Yuhu !

thanks neo
Retired Moderator
Joined: 01 Oct 2009
Posts: 485
Location: Bangalore,India
WE 1: 4yrs in IT Industry
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Re: NEW TO COMMUNITY [#permalink]  25 Apr 2010, 10:00
can do the same with smaller no.(though in thsi sum the numbers are easy to divide) this method will be very useful later

consider total members 90. 30 Cl.... 10 left

so 20/80=25%
Re: NEW TO COMMUNITY   [#permalink] 25 Apr 2010, 10:00
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