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In 12 years, Murray will be 4 times as old as he is now. The

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huda
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In 12 years, Murray will be 4 times as old as he is now. The [#permalink] New post   25 Oct 2019, 10:03
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In 12 years, Murray will be 4 times as old as he is now. The number of years until Murray is 8 times as old as he is now?

A. 16
B. 20
C. 28
D. 32
E. 44
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C
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Re: In 12 years, Murray will be 4 times as old as he is now. The [#permalink] New post   25 Oct 2019, 19:45
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huda wrote:
In 12 years, Murray will be 4 times as old as he is now. The number of years until Murray is 8 times as old as he is now?

A. 16
B. 20
C. 28
D. 32
E. 44


Here,
Let present age of Murray = \(M\)

In \(12\) yrs,

\(M+12 = 4M\)

or M = 4 ; i.e Murray's current age

\(8\) times of current age = \(8* 4 =32\)

Therefore, no. of years to reach \(32 = 32 - 4 = 28\) yrs
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Re: In 12 years, Murray will be 4 times as old as he is now. The [#permalink] New post   26 Oct 2019, 02:25
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Great explanation. This was tricky.
Thank you Sir.

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Re: In 12 years, Murray will be 4 times as old as he is now. The [#permalink] New post   24 Feb 2020, 06:46
1
huda wrote:
In 12 years, Murray will be 4 times as old as he is now. The number of years until Murray is 8 times as old as he is now?

A. 16
B. 20
C. 28
D. 32
E. 44


Let x = Murray's PRESENT age

In 12 years, Murray will be 4 times as old as he is now
In 12 years, Murray's age = x + 12
So we can write: x + 12 = 4x
Solve to get: x = 4
So Murray is presently 4 years old

The number of years until Murray is 8 times as old as he is now?
(8)(4) = 32
So the question is really asking us,"How many years will it take until Murray is 32 years old?"

32 - 4 = 28

Answer: C

Cheers,
Brent
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Re: In 12 years, Murray will be 4 times as old as he is now. The [#permalink] New post   30 Jul 2022, 08:23
Let M = Murray’s age now
So, M+12 = Murray’s age in 12 years
Therefore, 4M = M+12
=> 3M = 12
=> M = 4
The number of years until Murray is 8 times as old as he is now = 8*4 = 32
Thus in 32 - 4 = 28 Years
Answer Choice - C
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gmatclubot
Re: In 12 years, Murray will be 4 times as old as he is now. The [#permalink]
30 Jul 2022, 08:23
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