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# John is 20 years older than Brian. 12 years ago, John was

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John is 20 years older than Brian. 12 years ago, John was [#permalink]  07 May 2012, 04:07
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100% (00:00) correct 0% (00:00) wrong based on 0 sessions
John is 20 years older than Brian. 12 years ago, John was twice as old as Brian. Howold is Brian?

what's wrong with this word translation ??'

J= B + 20

J-12=2 (B+8)
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Re: John is 20 years older than Brian. 12 years ago, John was [#permalink]  07 May 2012, 04:46
carcass wrote:
John is 20 years older than Brian. 12 years ago, John was twice as old as Brian. Howold is Brian?

what's wrong with this word translation ??'

J= B + 20

J-12=2 (B+8)

John is 20 years older than Brian --> J=B+20;
12 years ago, John was twice as old as Brian --> J-12=2*(B-12);

Solving: B=32.

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Re: John is 20 years older than Brian. 12 years ago, John was   [#permalink] 07 May 2012, 04:46
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