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# Paul has x dollars. Tom's money equals Paul's plus twice the

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Manager
Joined: 13 Apr 2008
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Paul has x dollars. Tom's money equals Paul's plus twice the [#permalink]  13 May 2008, 05:01
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Paul has x dollars. Tom's money equals Paul's plus twice the Anita's. If Paul and Anita cost one dollar, respectively, Paul's money will twice Anita's. How much money, in x, does Tom have?

Please Explain, I did not understand the question too.
CEO
Joined: 17 Nov 2007
Posts: 3578
Concentration: Entrepreneurship, Other
Schools: Chicago (Booth) - Class of 2011
GMAT 1: 750 Q50 V40
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Re: PS- Algebra [#permalink]  13 May 2008, 12:45
Expert's post
let Tom has y dollars and Anita' has z dollars.

we have to equations:

y = x + 2*z
x-1 = 2*(z-1)

So, y = x + (x-1) +2 = 2*x + 1
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Manager
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Re: PS- Algebra [#permalink]  13 May 2008, 16:07
walker wrote:
let Tom has y dollars and Anita' has z dollars.

we have to equations:

y = x + 2*z
x-1 = 2*(z-1)

So, y = x + (x-1) +2 = 2*x + 1

cudos walker!
what is confusing here, at least for me, is "If Paul and Anita cost one dollar"
once walker explained that this means minus one, the rest is simple algebra.
Re: PS- Algebra   [#permalink] 13 May 2008, 16:07
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