. In a certain city, 60 percent of the registered voters are : GMAT Problem Solving (PS)
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# . In a certain city, 60 percent of the registered voters are

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Manager
Joined: 10 Feb 2011
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. In a certain city, 60 percent of the registered voters are [#permalink]

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18 Mar 2011, 13:35
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Difficulty:

5% (low)

Question Stats:

94% (01:58) correct 6% (01:40) wrong based on 70 sessions

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. In a certain city, 60 percent of the registered voters are Democrats and the rest are Republicans. In a mayoral race, if 75 percent of the registered voters who are Democrats and 20 percent of the registered voters who are Republicans are expected to vote for Candidate A, what percent of the registered voters are expected to vote for Candidate A ?
(A) 50%
(B) 53%
(C) 54%
(D) 55%
(E) 57%
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Re: . In a certain city, 60 percent of the registered voters are [#permalink]

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18 Mar 2011, 13:56
Registered voters = 100

D = 60

R = 40

75% of D ( 60) = 45

20% of R ( 40 ) = 8

Total voter% of registered voters = 53 / 100

53% Ans B
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Director
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Re: . In a certain city, 60 percent of the registered voters are [#permalink]

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18 Mar 2011, 15:33
(60/100)*V = D
(40/100)*V = R

(75/100)D + (20/100)R
substituting first two values in the third expression

we get (53/100 )V
= 53% of registered voters

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Re: . In a certain city, 60 percent of the registered voters are [#permalink]

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18 Mar 2011, 22:06
3/4*60 + 1/5*40

= 45 + 8 = 53

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Re: . In a certain city, 60 percent of the registered voters are   [#permalink] 18 Mar 2011, 22:06
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