From 1 and 2 we know that z > 0
From 1 m > 3z > 0
Hence C
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GMAT PREP QUES?
Source: Beat The GMAT — Data Sufficiency |
i think it C .. whats the OA
1. m-3z>0 .......... m >3z
m z m+z
4 1 5
-1 -5 -6
2. 4z - m >0 .............. m<4z
m z m+z
2 1 3
-5 -1 -6
after combining.... also does not give any result
3z<m<4z
m z m+z
3.5 1 4.5
So C.... pls. let me know the OA
1. m-3z>0 .......... m >3z
m z m+z
4 1 5
-1 -5 -6
2. 4z - m >0 .............. m<4z
m z m+z
2 1 3
-5 -1 -6
after combining.... also does not give any result
3z<m<4z
m z m+z
3.5 1 4.5
So C.... pls. let me know the OA
Last edited by rchadha7 on Fri Jan 04, 2008 6:16 pm, edited 2 times in total.
when we combine both equations ...add 1 and 2 we get z > 0 ...
No since z > 0 ...and from 1 we know that m > 3z m + z > 0 ..
Hence C ..
Hope this helps
No since z > 0 ...and from 1 we know that m > 3z m + z > 0 ..
Hence C ..
Hope this helps
IMO ans should be E
m + z > 0 ?
here we can say that if both m,n are +ve then m+z>0 & if boh m,n are -ve then m+z is less than 0
1) m-3z>0 or m>3z
here both are possible i.e m>3z>0 or 0>m>3z INSUFF
2) 4z-m>0 4z>m again both scenarios are possible here also INSUFF
Combine 3z<m<4z but still we can say that
3z<m<4z<0 & 0<3z<m<4z
INSUFF
E
m + z > 0 ?
here we can say that if both m,n are +ve then m+z>0 & if boh m,n are -ve then m+z is less than 0
1) m-3z>0 or m>3z
here both are possible i.e m>3z>0 or 0>m>3z INSUFF
2) 4z-m>0 4z>m again both scenarios are possible here also INSUFF
Combine 3z<m<4z but still we can say that
3z<m<4z<0 & 0<3z<m<4z
INSUFF
E
Regards
Samir
Samir
Thanks very much Sujay, did not sufficiently analyse this one
the scenario
3z<m<4z<0 cannot arise
Thanks for pointing out.
Happy New Year 2008! & best of luck for ur GMAT
the scenario
3z<m<4z<0 cannot arise
Thanks for pointing out.
Happy New Year 2008! & best of luck for ur GMAT
Regards
Samir
Samir
Anytime we all are here for one common cause ...
Wish you the same ...and best of luck to you too
Wish you the same ...and best of luck to you too
