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Is double set matrix applicable here

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Senior Manager
Senior Manager
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Joined: 10 Nov 2010
Posts: 267
Location: India
Concentration: Strategy, Operations
GMAT 1: 520 Q42 V19
GMAT 2: 540 Q44 V21
WE: Information Technology (Computer Software)
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Kudos [?]: 238 [0], given: 22

Is double set matrix applicable here [#permalink]

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New post 29 Mar 2011, 10:20
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A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

67% (02:19) correct 33% (02:00) wrong based on 6 sessions

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Guys for this 2 sets, 3 choices Problem, Is double set matrix ill help solving the problem.i tried with double set matrix but found difficult to organize the information in cells.

Pls share any approach to solve.

thanks
[Reveal] Spoiler: OA

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Joined: 16 Nov 2010
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Location: United States (IN)
Concentration: Strategy, Technology
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Re: Is double set matrix applicable here [#permalink]

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New post 29 Mar 2011, 22:00
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From (1) F(M or N) = 100 - 40 = 60 (Voters who responded favorable to at least one of M or N)


60 = 40 + 30 - F(M&N)

=> F(M&N) = 10, Sufficient.


From (2) UF(M or N) = 20 + 35 - 10 = 45

not sufficient to find F(M&N)

Answer - A
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Re: Is double set matrix applicable here   [#permalink] 29 Mar 2011, 22:00
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