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How do I solve this?

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Master | Next Rank: 500 Posts
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by mjjking » Thu Apr 02, 2009 6:15 am
thanks!

OA is [spoiler] 2/3 [/spoiler].
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REAL THING 1 (AUG 2007): 680 (Q43, V40)
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Master | Next Rank: 500 Posts
Posts: 353
Joined: Sat Jan 20, 2007 1:29 am
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by mjjking » Thu Apr 02, 2009 10:21 am
help!!
Beat The GMAT - 1st priority
Enter a top MBA program - 2nd priority
Loving my wife: MOST IMPORTANT OF ALL!

REAL THING 1 (AUG 2007): 680 (Q43, V40)
REAL THING 2 (APR 2009): 720 (Q47, V41)
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by lilu » Thu Apr 02, 2009 10:28 am
https://www.beatthegmat.com/gmat-prep-nu ... 13208.html
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by vittalgmat » Thu Apr 02, 2009 10:36 am
This problem has been solved many times before.
Pls search before posting the question.
I searched for "4 feet tall" and here are the top 2 search results.


https://www.beatthegmat.com/gmat-prep-ques-t3236.html

https://www.beatthegmat.com/one-more-gma ... t4049.html

HT Helps
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Re: How do I solve this?

by dtweah » Sat Apr 04, 2009 4:46 pm
mjjking wrote:thanks!

OA is [spoiler] 2/3 [/spoiler].



First Yr 4ft

Next 6 years (This is the trick. )

Yr 1 4+x

yr 2 4 +2x

3 4+3x

4 4+4x

5 4+5x

6 4+6x

4+6x= 4+4x + 1/5 (4+4x)

4+6x = 5/5(4+4x) +1/5(4+4x)
4 +6x = 6/5(4+4x)

20+ 30x = 24+ 24x

6x= 4

x=2/3
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