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Are at least 50% of people in a community members of the local library

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DS Forum Moderator
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Joined: 22 Aug 2013
Posts: 1348
Location: India
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Are at least 50% of people in a community members of the local library  [#permalink]

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New post 02 Apr 2018, 05:35
1
00:00
A
B
C
D
E

Difficulty:

  45% (medium)

Question Stats:

54% (01:13) correct 46% (01:08) wrong based on 32 sessions

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Are at least 50% of the people in a community members of the local library L?

(1) 48% of females in this community are not members of the local library L.

(2) 57% of males in this community are members of the local library L.
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Joined: 23 May 2017
Posts: 247
Concentration: Finance, Accounting
WE: Programming (Energy and Utilities)
Re: Are at least 50% of people in a community members of the local library  [#permalink]

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New post 02 Apr 2018, 06:26
Clearly Statement 1 and 2 alone can't suffice

combining both

statement 1 : female members = x ; female community member = ( 1 - 0.48)x = 0.52x

statement : male members = y ; male community member = 0.57y

Total number of community members = 0.52x + 0.57y which is greater than 0.50x + 0.50y { at least 50% of community members }

Answer = C
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Re: Are at least 50% of people in a community members of the local library &nbs [#permalink] 02 Apr 2018, 06:26
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Are at least 50% of people in a community members of the local library

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