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In a certain city, 15 percent of the total population is more than 60

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In a certain city, 15 percent of the total population is more than 60  [#permalink]

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New post 26 Nov 2018, 23:33
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A
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E

Difficulty:

  5% (low)

Question Stats:

96% (00:56) correct 4% (03:18) wrong based on 25 sessions

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Re: In a certain city, 15 percent of the total population is more than 60  [#permalink]

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New post 27 Nov 2018, 08:27
Bunuel wrote:
In a certain city, 15 percent of the total population is more than 60 years old. If 60 percent of the people older than 60 voted in a recent election, then these voters comprised what percent of the total population?

A. 6%
B. 8%
C. 9%
D. 15%
E. 60%



solve using 2x2 matrix, attached file..
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Re: In a certain city, 15 percent of the total population is more than 60  [#permalink]

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New post 08 Jun 2019, 02:50
Bunuel wrote:
In a certain city, 15 percent of the total population is more than 60 years old. If 60 percent of the people older than 60 voted in a recent election, then these voters comprised what percent of the total population?

A. 6%
B. 8%
C. 9%
D. 15%
E. 60%

Total Population: 100
>60 age is 15
Voted: (6/10)*15

Required: {(6/10)*15 } /100 * 100 = 9%
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Re: In a certain city, 15 percent of the total population is more than 60   [#permalink] 08 Jun 2019, 02:50
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In a certain city, 15 percent of the total population is more than 60

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