Find all School-related info fast with the new School-Specific MBA Forum

 It is currently 18 Jun 2013, 19:05

# This problem is ridiculously simple, unless I'm missing

Author Message
TAGS:
Manager
Joined: 15 Nov 2007
Posts: 137
Followers: 1

Kudos [?]: 23 [1] , given: 2

This problem is ridiculously simple, unless I'm missing [#permalink]  22 May 2008, 22:35
1
KUDOS
This problem is ridiculously simple, unless I'm missing something huge. Please show steps if you answer.

mv < pv < 0, is V > 0?

1. M < P
2. M < 0

I understand how you get at least B. But how is A sufficient -- how is it adding any data?
Director
Joined: 23 Sep 2007
Posts: 806
Followers: 4

Kudos [?]: 67 [1] , given: 0

Re: GMATPrep - Wow. [#permalink]  22 May 2008, 22:58
1
KUDOS
dominion wrote:
This problem is ridiculously simple, unless I'm missing something huge. Please show steps if you answer.

mv < pv < 0, is V > 0?

1. M < P
2. M < 0

I understand how you get at least B. But how is A sufficient -- how is it adding any data?

D

statement 1 is suff, substitute in numbers
say M = 1, P = 2, V = -1, this cannot satisfy mv < pv < 0
CEO
Joined: 17 Nov 2007
Posts: 3608
Concentration: Entrepreneurship, Other
Schools: Chicago (Booth) - Class of 2011
GMAT 1: 750 Q50 V40
Followers: 240

Kudos [?]: 1322 [1] , given: 347

Re: GMATPrep - Wow. [#permalink]  22 May 2008, 23:07
1
KUDOS
Consider inequality m<p and mv<pv

if we multiply p and m by positive v, we never change the order of p and m at the number line (v works as scale) and mv<mp is true.
For examle,
2<5 (v=2) 4<10
-2<5 (v=2) -4<10
-5<-2 (v=2) -10<-4

if we multiply p and m by negative v, we always change the order of p and m at the number line and mv<mp is false.

For examle,
2<5 (v=-2) -4>-10
-2<5 (v=-2) 4>-10
-5<-2 (v=-2) 10>4

That is why A also works.

P.S. I remember the question that seems to come from Prep2 but contains other symbols.
_________________

NEW! GMAT ToolKit 2 (iOS) / GMAT ToolKit (Android) - The must have GMAT prep app | PrepGame

CEO
Joined: 29 Mar 2007
Posts: 2618
Followers: 13

Kudos [?]: 144 [1] , given: 0

Re: GMATPrep - Wow. [#permalink]  23 May 2008, 06:13
1
KUDOS
dominion wrote:
This problem is ridiculously simple, unless I'm missing something huge. Please show steps if you answer.

mv < pv < 0, is V > 0?

1. M < P
2. M < 0

I understand how you get at least B. But how is A sufficient -- how is it adding any data?

This is a problem where you need to test numbers, which takes time and practice to get good at. I still mess it up so its not always perfect.

You could also realize that for S1: if M and V are + then that means V must be negative. But this won't work b/c the inequality would be untrue then. Take 2<3. (M<P) and V=-1

-2<-3???? this cannot be.
Intern
Joined: 26 Jul 2007
Posts: 33
Followers: 0

Kudos [?]: 3 [1] , given: 0

Re: GMATPrep - Wow. [#permalink]  23 May 2008, 07:36
1
KUDOS
dominion wrote:
This problem is ridiculously simple, unless I'm missing something huge. Please show steps if you answer.

mv < pv < 0, is V > 0?

1. M < P
2. M < 0

I understand how you get at least B. But how is A sufficient -- how is it adding any data?

Ans is A for me!
Because with stmt 2, let's have for {m,p,v} examples : {-1,1,2} and {-1,-3,-2}.
In the first case, v > 0 and v < 0 in second case!!
So stmt 2 is not sufficient!
Current Student
Joined: 28 Dec 2004
Posts: 3437
Location: New York City
Schools: Wharton'11 HBS'12
Followers: 11

Kudos [?]: 135 [1] , given: 2

Re: GMATPrep - Wow. [#permalink]  23 May 2008, 08:07
1
KUDOS
dominion wrote:
This problem is ridiculously simple, unless I'm missing something huge. Please show steps if you answer.

mv < pv < 0, is V > 0?

1. M < P
2. M < 0

I understand how you get at least B. But how is A sufficient -- how is it adding any data?

what is M and P are negative..

1) -3<-2
v=1..

M=2 and P=3
cannot be possible since v will have to be negative and -2<-3 is not possible

D it is..
Re: GMATPrep - Wow.   [#permalink] 23 May 2008, 08:07
Similar topics Replies Last post
Similar
Topics:
Is there a faster way to calculate this that I'm missing... 4 20 Sep 2006, 14:35
Missed this ridiculously easy one on today's CAT because of 4 12 Nov 2006, 03:10
Simple one missed it 2 14 Feb 2007, 20:08
Simple problem 3 14 Mar 2007, 19:45
simple question but missing something 3 04 Sep 2007, 11:14
Display posts from previous: Sort by