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3 questions ... need some help here.

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3 questions ... need some help here.

by tums22 » Mon Jun 30, 2008 7:11 am
Hi Math Gurus - need some enlightment
i got 3 gmat prep 2 questions wrong .. could u tell me how to attack them., with the logic.
All of them are DS.
Thanks.

Qs 1.
if MV < PV <0>0 ?
1. M < P
2 M < 0

Qs 2.
is x + y < 1 ?
1. X < 8/9
2. Y < 1/8


if c and d are integers is c even ?
1. c(d + 1 ) is even.
2. (c+2) (d+4) is even.
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Source: — Data Sufficiency |
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by cubicle_bound_misfit » Mon Jun 30, 2008 8:57 am
Q1 : Could not understand

Q2 : E

Q3 : A

Please let me know OA

regards,
Cubicle Bound Misfit
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by tums22 » Mon Jun 30, 2008 9:11 am
Hi - Thanks for the reply, i wanted to know the reasons for the same.
the first question should read
if MV < PV <0>0 ?
1. M < P
2 M < 0

Thanks.
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by tums22 » Mon Jun 30, 2008 9:12 am
Sorry again .. the post is reading it as a TAG and hence the problem .. rephrased question

if MV < PV <0> 0 ?
1. M < P
2 M < 0
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by tums22 » Mon Jun 30, 2008 9:19 am
Gosh This is irritating. sorry about this.
if MV < PV < 0.
is V GT 0 ? (GT = Greater Than).
1. M < P
2 M < 0
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by beeparoo » Mon Jun 30, 2008 12:10 pm
tums22 wrote:Gosh This is irritating. sorry about this.
if MV < PV < 0.
is V GT 0 ? (GT = Greater Than).
1. M < P
2 M < 0
I had a chuckle witnessing your posting troubles.

Anyway, the question stem reveals that the product of two variables is negative, which means that the variables cannot share the same sign. One must be neg while the other must be pos, but which one is which?

Statement 1: If M < P, then two possibilities exist.
Either both M & P are neg, and thus makes V pos.
Or, M & P are pos, and thus makes V negative.
INSUFF

Statement 2: Since M is neg and MV < 0, then V must be positive.
SUFF

Choose B
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by gauravkhare » Thu Jul 03, 2008 10:46 am
i think reply to the third prob is C and not A
gaurav
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