It is currently 21 Sep 2017, 12:38

### 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

# Challenge 25 (q37)

Author Message
Manager
Joined: 04 Nov 2006
Posts: 131

Kudos [?]: 91 [0], given: 8

### Show Tags

07 Nov 2006, 06:24
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

Can't understand the expln?
q. 1/(2-sqrt(3))=?

sqrt(3) - 2
2 + sqrt(3)
sqrt(2) + sqrt(3)
2 - sqrt(3)
sqrt(3) + 4

Kudos [?]: 91 [0], given: 8

VP
Joined: 28 Mar 2006
Posts: 1367

Kudos [?]: 38 [0], given: 0

### Show Tags

07 Nov 2006, 06:27
Multiple and divide numerator and denoiminator by 2+sqrt(3)

u get 2+sqrt(3)

Kudos [?]: 38 [0], given: 0

Senior Manager
Joined: 05 Oct 2006
Posts: 266

Kudos [?]: 18 [0], given: 0

### Show Tags

07 Nov 2006, 09:59
choice b

multiply num and den with 2+Sqrt 3

Kudos [?]: 18 [0], given: 0

GMAT Club Legend
Joined: 07 Jul 2004
Posts: 5039

Kudos [?]: 424 [0], given: 0

Location: Singapore

### Show Tags

08 Nov 2006, 02:44
1/(2-sqrt3)
= 1/(2-sqrt3) * (2+sqrt3)/(2+sqrt3)
= 2+sqrt3/4 - 3
= 2+sqrt3

Kudos [?]: 424 [0], given: 0

SVP
Joined: 01 May 2006
Posts: 1794

Kudos [?]: 165 [0], given: 0

### Show Tags

08 Nov 2006, 07:58
pawan82 wrote:
Can't understand the expln?
q. 1/(2-sqrt(3))=?

sqrt(3) - 2
2 + sqrt(3)
sqrt(2) + sqrt(3)
2 - sqrt(3)
sqrt(3) + 4

We are asked to find an easiest way to write the equation... to simplify it

Kudos [?]: 165 [0], given: 0

Re: Challenge 25 (q37)   [#permalink] 08 Nov 2006, 07:58
Display posts from previous: Sort by