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Presently, Fred is 4 times as old as Gary. In 10 years, Fred will be 3

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Joined: 02 Sep 2009
Posts: 52905
Presently, Fred is 4 times as old as Gary. In 10 years, Fred will be 3  [#permalink]

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31 Jan 2019, 23:22
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Question Stats:

80% (01:30) correct 20% (00:24) wrong based on 9 sessions

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Presently, Fred is 4 times as old as Gary. In 10 years, Fred will be 3 times as old as Gary. How old (in years) will Fred be in 3 years?

A. 80
B. 81
C. 82
D. 83
E. 84

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Joined: 09 Mar 2018
Posts: 914
Location: India
Presently, Fred is 4 times as old as Gary. In 10 years, Fred will be 3  [#permalink]

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Updated on: 01 Feb 2019, 07:27
Bunuel wrote:
Presently, Fred is 4 times as old as Gary. In 10 years, Fred will be 3 times as old as Gary. How old (in years) will Fred be in 3 years?

A. 80
B. 81
C. 82
D. 83
E. 84

F = 4 G-----(a)

F + 10 = 3 (G + 10)
F + 10 = 3G + 30
G = 20

=> F = 80 from (a)

To Find => F + 3 = 83

D
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Many of life's failures happen with people who do not realize how close they were to success when they gave up.

Originally posted by KanishkM on 31 Jan 2019, 23:36.
Last edited by KanishkM on 01 Feb 2019, 07:27, edited 1 time in total.
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Joined: 18 Oct 2018
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Re: Presently, Fred is 4 times as old as Gary. In 10 years, Fred will be 3  [#permalink]

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01 Feb 2019, 07:11
How did that f =80 come?

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Director
Joined: 09 Mar 2018
Posts: 914
Location: India
Re: Presently, Fred is 4 times as old as Gary. In 10 years, Fred will be 3  [#permalink]

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01 Feb 2019, 07:26
asho wrote:
How did that f =80 come?

Posted from my mobile device

asho

Just multiplied the value of G which i got from solving

F + 10 = 3 (G + 10)
F + 10 = 3G + 30
G = 20
_________________

If you notice any discrepancy in my reasoning, please let me know. Lets improve together.

Quote which i can relate to.
Many of life's failures happen with people who do not realize how close they were to success when they gave up.

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Joined: 18 Aug 2017
Posts: 1770
Location: India
Concentration: Sustainability, Marketing
GPA: 4
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Re: Presently, Fred is 4 times as old as Gary. In 10 years, Fred will be 3  [#permalink]

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01 Feb 2019, 10:45
Bunuel wrote:
Presently, Fred is 4 times as old as Gary. In 10 years, Fred will be 3 times as old as Gary. How old (in years) will Fred be in 3 years?

A. 80
B. 81
C. 82
D. 83
E. 84

f=4g
f+10=(g+10 )* 3
solve
g= 20
f= 80
80+3 = 83
IMO D
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Re: Presently, Fred is 4 times as old as Gary. In 10 years, Fred will be 3   [#permalink] 01 Feb 2019, 10:45
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Presently, Fred is 4 times as old as Gary. In 10 years, Fred will be 3

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