x AND y ARE integers, and x>0, is y>0?
1) 7x-2y>0
2) -y<x what does this statement mean?
OA IS E
gmat prep
This topic has expert replies
- 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
Statement 1: 7x-2y > 0grandh01 wrote:x AND y ARE integers, and x>0, is y>0?
1) 7x-2y>0
2) -y<x what does this statement mean?
OA IS E
7x > 2y
y < (7/2)x.
If x=2, then y < 7.
Since it's possible that y=6 or y=-1, INSUFFICIENT.
Statement 2: -y < x
Thus, y > -x.
If x=2, then y > -2.
Since it's possible that y=6 or y=-1, INSUFFICIENT.
Statements 1 and 2 combined:
If x=2, then -2 < y < 7.
Since it's possible that y=6 or y=-1, INSUFFICIENT.
The correct answer is E.
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