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# A think tank projects that people over the age of 65 will comprise 25%

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Math Expert
Joined: 02 Sep 2009
Posts: 53020
A think tank projects that people over the age of 65 will comprise 25%  [#permalink]

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08 Feb 2019, 04:01
00:00

Difficulty:

25% (medium)

Question Stats:

91% (01:22) correct 9% (01:49) wrong based on 11 sessions

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A think tank projects that people over the age of 65 will comprise 25% of the U.S. population by 2010. If the current population of 300 million is expected to grow by 8% by 2010, how many people over age 65, in millions, will there be in 2010 ?

A. 75
B. 77
C. 80
D. 81
E. 85

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Location: Pune, India
Re: A think tank projects that people over the age of 65 will comprise 25%  [#permalink]

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08 Feb 2019, 04:20
Bunuel wrote:
A think tank projects that people over the age of 65 will comprise 25% of the U.S. population by 2010. If the current population of 300 million is expected to grow by 8% by 2010, how many people over age 65, in millions, will there be in 2010 ?

A. 75
B. 77
C. 80
D. 81
E. 85

Current Population = 300 million
Population in 2010 = 300*(1 + 8/100) = 324 million

People over 65 yrs = 25% of 324 million = 81 million

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Re: A think tank projects that people over the age of 65 will comprise 25%  [#permalink]

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08 Feb 2019, 04:52
Bunuel wrote:
A think tank projects that people over the age of 65 will comprise 25% of the U.S. population by 2010. If the current population of 300 million is expected to grow by 8% by 2010, how many people over age 65, in millions, will there be in 2010 ?

A. 75
B. 77
C. 80
D. 81
E. 85

popn 300
2010 = 1.08 * 300= 324
and 25% = .25* 324 = 324*1/4 = 81
IMO D
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Re: A think tank projects that people over the age of 65 will comprise 25%   [#permalink] 08 Feb 2019, 04:52
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