GMAT Question of the Day - Daily to your Mailbox; hard ones only

 It is currently 17 Aug 2018, 10:09

### 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

# gmatprept1q16

Author Message
Director
Joined: 23 May 2008
Posts: 739

### Show Tags

20 Jun 2009, 17:36
00:00

Difficulty:

(N/A)

Question Stats:

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

### HideShow timer Statistics

--== Message from GMAT Club Team ==--

This is not a quality discussion. It has been retired.

If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.

Attachments

gmatprept1q16.jpg [ 13.8 KiB | Viewed 973 times ]

Current Student
Joined: 03 Aug 2006
Posts: 112

### Show Tags

20 Jun 2009, 18:18
1
What is $$x$$?

$$2^x-2^{x-2}=3(2^{13})$$

$$\Rightarrow 2^x-\frac{2^x}{2^2}=3(2^{13})$$

$$\Rightarrow \frac{2^22^x-2^x}{2^2}=3(2^{13})$$

$$\Rightarrow \frac{2^x(2^2-1)}{2^2}=3(2^{13})$$

$$\Rightarrow 2^x(4-1)=3(2^{13})(2^2)$$

$$\Rightarrow 3(2^x)=3(2^{15})$$

$$\Rightarrow 2^x=2^{15}$$

$$\Rightarrow x=15$$

Note: I could not see the image properly, I think the second half of the question had $$x^{13}$$. If the value was other than 13 then the answer would be that value + 2.
Manager
Joined: 28 Jan 2004
Posts: 198
Location: India

### Show Tags

21 Jun 2009, 01:35
bigtreezl, after uploading an image pls. check if it is easily visible to others. I don't know how nookway looked at the quesion but i was not able to figure out the question. I am sure you will want all of us to do the same.

--== Message from GMAT Club Team ==--

This is not a quality discussion. It has been retired.

If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.
Re: gmatprept1q16 &nbs [#permalink] 21 Jun 2009, 01:35
Display posts from previous: Sort by

# Events & Promotions

 Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.