• 7 CATs FREE!
If you earn 100 Forum Points

Engage in the Beat The GMAT forums to earn
100 points for \$49 worth of Veritas practice GMATs FREE

VERITAS PRACTICE GMAT EXAMS
Earn 10 Points Per Post
Earn 10 Points Per Thanks
Earn 10 Points Per Upvote

## We love the numbers line!

##### This topic has expert replies
Master | Next Rank: 500 Posts
Posts: 353
Joined: 20 Jan 2007
Location: Italy
Thanked: 7 times
GMAT Score:720

### We love the numbers line!

by mjjking » Tue Mar 24, 2009 11:55 pm

thanks folks!
Attachments
number line.JPG (65.78 KiB) Viewed 143 times
Beat The GMAT - 1st priority
Enter a top MBA program - 2nd priority
Loving my wife: MOST IMPORTANT OF ALL!

REAL THING 1 (AUG 2007): 680 (Q43, V40)
REAL THING 2 (APR 2009): 720 (Q47, V41)

Senior | Next Rank: 100 Posts
Posts: 35
Joined: 14 Apr 2008
Thanked: 1 times
by NethraN » Wed Mar 25, 2009 1:55 am
I go with C.
Nethra

Master | Next Rank: 500 Posts
Posts: 353
Joined: 20 Jan 2007
Location: Italy
Thanked: 7 times
GMAT Score:720
by mjjking » Wed Mar 25, 2009 3:50 am
I go with C too, but why?
Beat The GMAT - 1st priority
Enter a top MBA program - 2nd priority
Loving my wife: MOST IMPORTANT OF ALL!

REAL THING 1 (AUG 2007): 680 (Q43, V40)
REAL THING 2 (APR 2009): 720 (Q47, V41)

Senior | Next Rank: 100 Posts
Posts: 35
Joined: 14 Apr 2008
Thanked: 1 times
by NethraN » Wed Mar 25, 2009 4:32 am
Because with stmt 1 alone is not sufficient and stmt 2 alone would be sufficient if it is mentioned that 'S' is positive but since this is not stated explicitly 'S' and be -ve and if its -ve 0 wont lie between r and s.

Now since stmt 1 says 'S' is positive we can derive the result from stmt 2.

So, both stmts together are sufficient.

Correct me if I am wrong.
Nethra

Master | Next Rank: 500 Posts
Posts: 232
Joined: 04 Jul 2008
Thanked: 14 times
Followed by:1 members
GMAT Score:760
by rs2010 » Fri Mar 27, 2009 9:26 am
Yes combining both will information that

-s and r are same point on the number line so C.

Legendary Member
Posts: 621
Joined: 09 Apr 2008
Thanked: 33 times
Followed by:4 members
by vittalgmat » Fri Mar 27, 2009 9:04 pm
C
Here is my approach

The problem can be rewritten as

Is s = -r ?

Stmt 1 is not sufficient.

Stmt 2 can be written as t -r = t - (-s) OR r -t = t -(-s)
simplifying s = -r. OR r -t = t + s.

Using both stmts, we get s = -r. So C

• Page 1 of 1