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DS GMAT Prep I

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Viswanathan.harsha
 Post subject: DS GMAT Prep I
 Post Posted: Mon Sep 27, 2010 6:12 pm 
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Course Students


Posts: 46
Last month 15 homes were sold in Town X. The average sale price of the homes was $150, 000 and the median sale price was $130,000. Which of the following must be true?

I. At least one of the homes was sold for more than $165,000
II. At least one of the homes was sold for more than $130,000 and less than $150,000.
III. At least one of the homes was sold for less than $130,000

A. I only
B. II only
C. III only
D. I and II
E. I and III

OA: A

I chose A correctly but I felt like I guessed. I knew it was not II and III because you can have a bunch of homes selling for 130K, and one home for a really high price, over 165K (hence I). Is this the correct train of thought? I just was not sure how to quickly ensure that there had to be a home that was above 165,000
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gokul_nair1984
 Post subject: Re: DS GMAT Prep I
 Post Posted: Mon Sep 27, 2010 6:20 pm 
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Students


Posts: 170
Harsha, Searching saves time :)

http://www.manhattangmat.com/forums/last-month-15-homes-were-sold-in-town-x-t4373.html
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RonPurewal
 Post subject: Re: DS GMAT Prep I
 Post Posted: Mon Oct 04, 2010 8:48 am 
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ManhattanGMAT Staff


Posts: 7146
to the poster above, nice find.

to the original poster -- this is a very easily searchable question; there is LOTS of text that you could use for your search.

at this point almost every medium- and high-difficulty problem from gmat prep has been posted (at least once, and often several different times) in this forum; PLEASE search in the forum for relevant threads before you post. we don't want multiple threads to arise regarding the same problem.
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