It is currently 16 Oct 2017, 22:46

### 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

# If 2^x - 2^x-2(exponent x-2) = 3(2^13), what is value of x?

Author Message
Manager
Joined: 08 Feb 2006
Posts: 124

Kudos [?]: 12 [0], given: 0

If 2^x - 2^x-2(exponent x-2) = 3(2^13), what is value of x? [#permalink]

### Show Tags

24 Feb 2006, 20:02
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

If 2^x - 2^x-2(exponent x-2) = 3(2^13), what is value of x?

a) 9
b) 11
c) 13
d) 15
e) 17

Kudos [?]: 12 [0], given: 0

Manager
Joined: 20 Feb 2006
Posts: 214

Kudos [?]: 17 [0], given: 0

### Show Tags

24 Feb 2006, 20:23
X = 5
2^x (1-1/4) = 3*(2^13)
=> (2^x)*3/4 = 3*(2^13)
=> 2^x = 2^15
=> x = 15

Kudos [?]: 17 [0], given: 0

SVP
Joined: 14 Dec 2004
Posts: 1685

Kudos [?]: 168 [0], given: 0

### Show Tags

24 Feb 2006, 21:50
D) x= 15.

2^x-2 * (4-1) = 3 * (2^13)
= 2^x-2 = 2^13
=> x = 15

Kudos [?]: 168 [0], given: 0

24 Feb 2006, 21:50
Display posts from previous: Sort by