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In a certain city, 60 percent of the registered voters are

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In a certain city, 60 percent of the registered voters are [#permalink] New post 07 Dec 2012, 04:53
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Question Stats:

91% (02:11) correct 9% (01:40) wrong based on 188 sessions
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] New post 07 Dec 2012, 04:58
Expert's post
Walkabout wrote:
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%


Say there are total of 100 registered voters in that city. Thus 60 are Democrats and 40 are Republicans.

60*0.75=45 Democrats are expected to vote for Candidate A;
40*0.20=8 Republicans are expected to vote for Candidate A.

Thus total of 45+8=53 registered voters are expected to vote for Candidate A, which is 53% of the total number of registered voters.

Answer: B.
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Re: In a certain city, 60 percent of the registered voters are   [#permalink] 07 Dec 2012, 04:58
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