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# avgs sold items

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Current Student
Joined: 11 May 2008
Posts: 551

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28 Jul 2008, 10:36
1
how does one solve this??

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Senior Manager
Joined: 06 Apr 2008
Posts: 390

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28 Jul 2008, 10:41
1
arjtryarjtry wrote:
how does one solve this??

Statement 1) is insuff. since it only tells number of tables sold.

For statement 2) he average selling price is 200

Now average selling price of chair is 170 and table is 250

Let number of chairs sold be x and number of tables sold be y

170x + 250y / (x + y) = 200

30x = 50y

x = 5/3 y

Therefore x is more than y which means statement 2) is suff.
Director
Joined: 10 Sep 2007
Posts: 909

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28 Jul 2008, 10:45
1
250+170/2 = 210
210 < 200 so chairs sold should be more than tables sold. To reduce the ration further.

Other way of looking at it is 250 is 50 away from 50, while 170 is just 30 so we need more of 170 to compensate for bigger 250.
Current Student
Joined: 11 May 2008
Posts: 551

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28 Jul 2008, 10:48
thanks both of you...its so simple, but i dont know why i could not get the goddamn concept while solving the problem.
Current Student
Joined: 04 Jan 2005
Posts: 281
Location: Milan
Schools: Wharton, LBS, UChicago, Kellogg MMM (Donald Jacobs Scholarship), Stanford, HBS

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28 Jul 2008, 10:54
1
Note that the average selling price of items (that is, total revenues/# of items sold) is \$200.

If the store sold as many tables as it did chairs, the average selling price should have been (170+250)/2 = \$210. As it is indeed \$200, we can say it sells more chairs than it does tables (e.g. 5 chairs and 3 tables).
Manager
Joined: 18 Aug 2006
Posts: 57
Location: Houston TX

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28 Jul 2008, 12:13
Thanks, guys. All of your explanations are very clear.

--== Message from GMAT Club Team ==--

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To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.

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haveaniceday

Re: avgs sold items &nbs [#permalink] 28 Jul 2008, 12:13
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# avgs sold items

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