If w and c are integers, is w > 0?
(1) w + c > 50
(2) c > 48
[spoiler]
i got E for this one but Oa is C. please explain how?[/spoiler]
5-Day Free Trial
5-day free, full-access trial TTP
Available with Beat the GMAT members only code
MORE DETAILS
integers
This topic has expert replies
-
Robinmrtha
- Senior | Next Rank: 100 Posts
- Posts: 91
- Joined: Wed Apr 01, 2009 9:53 pm
- Thanked: 11 times
I also got E
Statement 1.
w + c > 50
here the possible values for w and c are (-5,60), (5,55)
Statement 2.
c > 48
says nothing about W
insufficient
Combining both
when c = 49, w=6
when c= 55, w= -3
How come C is the answer....?
I am pretty sure that E is the answer......
Statement 1.
w + c > 50
here the possible values for w and c are (-5,60), (5,55)
Statement 2.
c > 48
says nothing about W
insufficient
Combining both
when c = 49, w=6
when c= 55, w= -3
How come C is the answer....?
I am pretty sure that E is the answer......
-
gmat740
- MBA Student
- Posts: 1194
- Joined: Sat Aug 16, 2008 9:42 pm
- Location: Paris, France
- Thanked: 71 times
- Followed by:17 members
- GMAT Score:710
The answer has to be E
but lets say if we consider C as an answer then we have to change the sign of equation in (2)
if c<48
then the max value of c can be 47
c+w >50
putting the max value of c
w+47>50
w>3
so w>0
this I think might be a correct way of getting C, otherwise with the problem stated, answer is E
Hope this helps
but lets say if we consider C as an answer then we have to change the sign of equation in (2)
if c<48
then the max value of c can be 47
c+w >50
putting the max value of c
w+47>50
w>3
so w>0
this I think might be a correct way of getting C, otherwise with the problem stated, answer is E
Hope this helps
I agree. Answer should be E
st 1 - w+c>50 -- if w=-2 and c=52 case, w<0 and if w=2 and c=48 then w>0 -- hence insuff
st 2 - c> 48 -- that implies c can be 50 or even greater -- insufficient
both combined also we will not get the answer. Hence I am pretty sure, answer should be E
st 1 - w+c>50 -- if w=-2 and c=52 case, w<0 and if w=2 and c=48 then w>0 -- hence insuff
st 2 - c> 48 -- that implies c can be 50 or even greater -- insufficient
both combined also we will not get the answer. Hence I am pretty sure, answer should be E
GMAT/MBA Expert
-
Anurag@Gurome
- 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
(1) If w = 30, c = 21, then w > 0ketkoag wrote:If w and c are integers, is w > 0?
(1) w + c > 50
(2) c > 48
[spoiler]
i got E for this one but Oa is C. please explain how?[/spoiler]
If w = -10, c = 61, then w < 0
No definite answer; NOT sufficient.
(2) c > 48 gives no info about w; NOT sufficient.
Combining (1) and (2), If w = 30, c = 51, then w > 0
If w = -10, c = 61, then w < 0; NOT sufficient.
The correct answer is E.
I think that statement 1 should be w + c < 50 instead of w + c > 50. In that case, both the statements alone are not sufficient. When we combine the two statements: If we take c = 49 (the smallest possible value of c), then w = 0 for w + c < 50 to hold true. This means that w < 0 always, and the answer to the question is "no". Then the correct answer would be C.
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/
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/
