DS GMAT Prep I

[Viswanathan.harsha]

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

[gokul_nair1984]

Harsha, Searching saves time :)

http://www.manhattangmat.com/forums/last-month-15-homes-were-sold-in-town-x-t4373.html

[RonPurewal]

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.