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

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Math Expert
Joined: 02 Sep 2009
Posts: 58434
Presently, Fred is 4 times as old as Gary. In 10 years, Fred will be 3  [#permalink]

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01 Feb 2019, 00:22
00:00

Difficulty:

25% (medium)

Question Stats:

87% (01:47) correct 13% (01:24) wrong based on 19 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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Director
Joined: 09 Mar 2018
Posts: 994
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, 08:27
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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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.

Originally posted by KanishkM on 01 Feb 2019, 00:36.
Last edited by KanishkM on 01 Feb 2019, 08:27, edited 1 time in total.
Intern
Joined: 19 Oct 2018
Posts: 2
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, 08:11
How did that f =80 come?

Posted from my mobile device
Director
Joined: 09 Mar 2018
Posts: 994
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, 08:26
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.
GMAT Club Legend
Joined: 18 Aug 2017
Posts: 5022
Location: India
Concentration: Sustainability, Marketing
GPA: 4
WE: Marketing (Energy and Utilities)
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, 11:45
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
Re: Presently, Fred is 4 times as old as Gary. In 10 years, Fred will be 3   [#permalink] 01 Feb 2019, 11:45
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