GMAT PREP QUES?

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GMAT PREP QUES?

by dferm » Fri Nov 30, 2007 10:33 am
PLEASE ELABORATE ANSWER>>>
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by sujaysolanki » Mon Dec 03, 2007 5:03 am
From 1 and 2 we know that z > 0

From 1 m > 3z > 0

Hence C

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GMAT PREP

by dferm » Mon Dec 03, 2007 9:17 am
DONT UNDERSTAND UR BREAK DOWN

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GMAT PREP

by dferm » Mon Dec 03, 2007 9:18 am
DONT UNDERSTAND UR BREAK DOWN

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by rchadha7 » Sun Dec 30, 2007 3:42 pm
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
Last edited by rchadha7 on Fri Jan 04, 2008 6:16 pm, edited 2 times in total.

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by sujaysolanki » Sun Dec 30, 2007 9:09 pm
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

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by samirpandeyit62 » Mon Dec 31, 2007 12:26 am
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
Regards
Samir

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by samirpandeyit62 » Mon Dec 31, 2007 4:06 am
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
Regards
Samir

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by sujaysolanki » Mon Dec 31, 2007 4:16 am
Anytime we all are here for one common cause ...

Wish you the same ...and best of luck to you too :D