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Intern
Joined: 06 Jun 2009
Posts: 1
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Could someone please help with this?  Thanks!
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SVP
Joined: 30 Apr 2008
Posts: 1900
Location: Oklahoma City
Schools: Hard Knocks
Followers: 25
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Please state the source. Also, your subject is very vague. Considering you have posted bunches of questions with the same subject line, you're not likely to get many responses.
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J Allen Morris
**I'm pretty sure I'm right, but then again, I'm just a guy with his head up his a$$.
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Intern
Joined: 21 Apr 2009
Posts: 10
Location: DC
Followers: 2
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Here's one where it pays to analyze the question stem a little bit before proceeding.
The question asks for the average of 3x and 6y, two things, and so to find the average you divide that sum by 2. (3x+6y) / 2 can simplify to x+2y. Now it becomes clear that statement 1 suffices.
It shouldn't be too difficult to see why Statement 2 is insufficient. To really nail home that it isn't, one could use examples, though that shouldn't reeeeeally be necessary. Suppose x is 4 and y is 2. That satisfies the statement, and then the average in question is 8. However, it could also be the case that, for example, x is 1 and y is 5. In this case, the average in question is 11. Whatever. (And when I say "average", i'm really just plugging into x+2y). Since we get different answers, it's insufficient.
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Founder
Status: On Vacation :-)
Affiliations: UA-1K, SPG-G, HH-D
Joined: 04 Dec 2002
Posts: 10393
Location: United States (WA)
GMAT 1: 750 Q49 V42
GPA: 3.5
WE: Information Technology (Hospitality and Tourism)
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Since there is no image and no indication of test or question number, i am going to lock this one. Moderators should be able to unlock or edit if necessary.
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