Check GMAT Club Decision Tracker for the Latest School Decision Releases https://gmatclub.com/AppTrack

 It is currently 22 May 2017, 14:54

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# PS: GMATPrep 1 (growth rates)

Author Message
Director
Joined: 14 Sep 2007
Posts: 908
Schools: Kellogg '10
Followers: 6

Kudos [?]: 94 [0], given: 15

PS: GMATPrep 1 (growth rates) [#permalink]

### Show Tags

13 Feb 2008, 12:05
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions

### HideShow timer Statistics

This topic is locked. If you want to discuss this question please re-post it in the respective forum.

Can someone explain the attached? It seems easy, but I get the wrong answer. I set the formula as:

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

I don't know how to solve for X in that formula in the first place, but even if I did I'm sure it's not right.

Thanks.
Attachments

GMATPrep2 Question 31.doc [70 KiB]

_________________

http://www.fantasticcontraption.com

GMAT Club Premium Membership - big benefits and savings

Director
Joined: 12 Jul 2007
Posts: 862
Followers: 17

Kudos [?]: 307 [1] , given: 0

Re: PS: GMATPrep 1 (growth rates) [#permalink]

### Show Tags

13 Feb 2008, 12:31
1
KUDOS
$formdata=4+6x+=\frac{6}{5}(4+4x)$

multiply through by 5

$formdata=20+30x+=+24+++24x$

$formdata=6x=4$

$formdata=x=\frac{2}{3}$

The constant amount is X feet per year, no need to raise it to powers or anything like that. Keep it simple
Director
Joined: 14 Sep 2007
Posts: 908
Schools: Kellogg '10
Followers: 6

Kudos [?]: 94 [0], given: 15

Re: PS: GMATPrep 1 (growth rates) [#permalink]

### Show Tags

13 Feb 2008, 12:35
eschn3am wrote:
The constant amount is X feet per year, no need to raise it to powers or anything like that. Keep it simple

Argggh...

Man I dumb sometimes.

Thanks!
_________________

http://www.fantasticcontraption.com

GMAT Club Premium Membership - big benefits and savings

Re: PS: GMATPrep 1 (growth rates)   [#permalink] 13 Feb 2008, 12:35
Display posts from previous: Sort by