• 5-Day Free Trial
5-day free, full-access trial TTP Quant

Available with Beat the GMAT members only code

• Reach higher with Artificial Intelligence. Guaranteed
Now free for 30 days

Available with Beat the GMAT members only code

• Award-winning private GMAT tutoring
Register now and save up to \$200

Available with Beat the GMAT members only code

• Free Trial & Practice Exam
BEAT THE GMAT EXCLUSIVE

Available with Beat the GMAT members only code

• 5 Day FREE Trial
Study Smarter, Not Harder

Available with Beat the GMAT members only code

• 1 Hour Free
BEAT THE GMAT EXCLUSIVE

Available with Beat the GMAT members only code

• Get 300+ Practice Questions

Available with Beat the GMAT members only code

• Magoosh
Study with Magoosh GMAT prep

Available with Beat the GMAT members only code

• Free Practice Test & Review
How would you score if you took the GMAT

Available with Beat the GMAT members only code

• Free Veritas GMAT Class
Experience Lesson 1 Live Free

Available with Beat the GMAT members only code

## test 19 #20

This topic has 1 member reply
dunkin77 Master | Next Rank: 500 Posts
Joined
01 Apr 2007
Posted:
269 messages

#### test 19 #20

Tue May 01, 2007 7:32 am
Hi,

I think to meet the condition, x must be positive, but why 2) meet the condition?? the answer is B but could not figure out,..
Attachments

jayhawk2001 Community Manager
Joined
28 Jan 2007
Posted:
789 messages
Followed by:
1 members
30
Tue May 01, 2007 9:00 pm
dunkin77 wrote:
Hi,

I think to meet the condition, x must be positive, but why 2) meet the condition?? the answer is B but could not figure out,..
sqrt [ (x-3)^2 ] will yield a positive answer. Now, depending on the
sign of x, it will be either x-3 or 3-x.

1 - insufficient. x can be > 3 or < 3. So, we don't know if it will be
equal to 3-x

2 - sufficient. -x|x| will be positive when x is negative. Since x is
negative, the final answer will be 3-x and hence sufficient.

### Best Conversation Starters

1 lheiannie07 92 topics
2 Roland2rule 61 topics
3 ardz24 60 topics
4 LUANDATO 59 topics
5 M7MBA 50 topics
See More Top Beat The GMAT Members...

### Most Active Experts

1 Rich.C@EMPOWERgma...

EMPOWERgmat

138 posts
2 GMATGuruNY

The Princeton Review Teacher

131 posts
3 Brent@GMATPrepNow

GMAT Prep Now Teacher

122 posts
4 Jeff@TargetTestPrep

Target Test Prep

114 posts
5 Scott@TargetTestPrep

Target Test Prep

100 posts
See More Top Beat The GMAT Experts