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# If Jason was 34 years old 8 years ago and Lester was 27 years old 5 ye

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Math Expert
Joined: 02 Sep 2009
Posts: 49871
If Jason was 34 years old 8 years ago and Lester was 27 years old 5 ye  [#permalink]

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01 Jan 2018, 01:44
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Difficulty:

25% (medium)

Question Stats:

78% (01:24) correct 22% (00:47) wrong based on 11 sessions

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If Jason was 34 years old 8 years ago and Lester was 27 years old 5 years ago, what was the average (arithmetic mean) of their ages x years ago?

A. x + 37
B. 37 – x
C. 61/2 + x
D. 32 – x
E. 35 + x

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Re: If Jason was 34 years old 8 years ago and Lester was 27 years old 5 ye  [#permalink]

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01 Jan 2018, 01:47
Bunuel wrote:
If Jason was 34 years old 8 years ago and Lester was 27 years old 5 years ago, what was the average (arithmetic mean) of their ages x years ago?

A. x + 37
B. 37 – x
C. 61/2 + x
D. 32 – x
E. 35 + x

Since Jason was 34 years old, 8 years ago, his current age is 42
Similarly, sine Lester was 27 years old, 5 years ago, his current age is 32.

Hence, the average of their ages is $$\frac{42+32}{2}$$ or 37.

Hence, their average(x years ago) was 37-x(Option B)
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Re: If Jason was 34 years old 8 years ago and Lester was 27 years old 5 ye  [#permalink]

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01 Jan 2018, 01:51
Bunuel wrote:
If Jason was 34 years old 8 years ago and Lester was 27 years old 5 years ago, what was the average (arithmetic mean) of their ages x years ago?

A. x + 37
B. 37 – x
C. 61/2 + x
D. 32 – x
E. 35 + x

Today Hason = 42 and Lester = 32
Avg Age = 37

X year ago
Avg Age = 37-x

B
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Re: If Jason was 34 years old 8 years ago and Lester was 27 years old 5 ye &nbs [#permalink] 01 Jan 2018, 01:51
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