On the number line (GMAT Prep 2)

This topic has expert replies
Source: — Data Sufficiency |

GMAT/MBA Expert

User avatar
GMAT Instructor
Posts: 3835
Joined: Fri Apr 02, 2010 10:00 pm
Location: Milpitas, CA
Thanked: 1854 times
Followed by:523 members
GMAT Score:770

by Anurag@Gurome » Sat Jul 21, 2012 2:01 am
alex.gellatly wrote:On the number line, the distance between x and y is greater than the distance between x and z. Does x lie between x and y on the number line?

1. xyz<0
2. xy<0
It will be "Does z lie between x and y on the number line?"

Consider the following two cases,
  • x = 2, y = -1, z = 1 ---> YES
    x = 2, y = -1, z = 3 ---> NO
Both of the above cases satisfy both the statements but the answer is first case is YES and in the second is NO.

Hence, both statements together is also not sufficient.

The correct answer is E.
Anurag Mairal, Ph.D., MBA
GMAT Expert, Admissions and Career Guidance
Gurome, Inc.
1-800-566-4043 (USA)

Join Our Facebook Groups
GMAT with Gurome
https://www.facebook.com/groups/272466352793633/
Admissions with Gurome
https://www.facebook.com/groups/461459690536574/
Career Advising with Gurome
https://www.facebook.com/groups/360435787349781/

Newbie | Next Rank: 10 Posts
Posts: 2
Joined: Sat Sep 15, 2012 10:12 pm

by itairikovitch » Sun Oct 07, 2012 1:35 pm
Hi
I used the given statement, "the distance between x and y is greater than the distance between x and z", and concluded the ABS(Z) > ABS (Y). This conclusion limited the numbers I could pick.

Is it correct?
Tx
Itai