I posted two different approaches here:
https://www.beatthegmat.com/modulus-ps-t112185.html
https://www.beatthegmat.com/let-get-abso ... 27383.html
Inequalities problem
This topic has expert replies
Source: Beat The GMAT — Problem Solving |
-
GMATGuruNY
- GMAT Instructor
- Posts: 15539
- Joined: Tue May 25, 2010 12:04 pm
- Location: New York, NY
- Thanked: 13060 times
- Followed by:1906 members
- GMAT Score:790
Private tutor exclusively for the GMAT and GRE, with over 20 years of experience.
Followed here and elsewhere by over 1900 test-takers.
I have worked with students based in the US, Australia, Taiwan, China, Tajikistan, Kuwait, Saudi Arabia -- a long list of countries.
My students have been admitted to HBS, CBS, Tuck, Yale, Stern, Fuqua -- a long list of top programs.
As a tutor, I don't simply teach you how I would approach problems.
I unlock the best way for YOU to solve problems.
For more information, please email me (Mitch Hunt) at [email protected].
Student Review #1
Student Review #2
Student Review #3
Followed here and elsewhere by over 1900 test-takers.
I have worked with students based in the US, Australia, Taiwan, China, Tajikistan, Kuwait, Saudi Arabia -- a long list of countries.
My students have been admitted to HBS, CBS, Tuck, Yale, Stern, Fuqua -- a long list of top programs.
As a tutor, I don't simply teach you how I would approach problems.
I unlock the best way for YOU to solve problems.
For more information, please email me (Mitch Hunt) at [email protected].
Student Review #1
Student Review #2
Student Review #3
GMAT/MBA Expert
-
[email protected]
- Elite Legendary Member
- Posts: 10392
- Joined: Sun Jun 23, 2013 6:38 pm
- Location: Palo Alto, CA
- Thanked: 2867 times
- Followed by:511 members
- GMAT Score:800
Hi psm12se,
Mitch provides the correct explanation for this prompt, but there is an additional point worth noting...
First, we're told that ( X / |X| ) < X
So X CANNOT = -1, 0 or 1
X CAN = anything greater than 1.......so, X > 1
Also, X CAN = any negative fraction.......so 0 > X > -1
We need an answer that contains ALL of those possibilities.
The correct answer IS B. Based on what we know about the possible values of X, X MUST be greater than - 1. This DOESN'T mean that every value greater than -1 is a possible solution, it means that THIS one description defines every possible value of X that fits the beginning info.
GMAT assassins aren't born, they're made,
Rich
Mitch provides the correct explanation for this prompt, but there is an additional point worth noting...
First, we're told that ( X / |X| ) < X
So X CANNOT = -1, 0 or 1
X CAN = anything greater than 1.......so, X > 1
Also, X CAN = any negative fraction.......so 0 > X > -1
We need an answer that contains ALL of those possibilities.
The correct answer IS B. Based on what we know about the possible values of X, X MUST be greater than - 1. This DOESN'T mean that every value greater than -1 is a possible solution, it means that THIS one description defines every possible value of X that fits the beginning info.
GMAT assassins aren't born, they're made,
Rich
