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Algebra Word Problem

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Intern
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Algebra Word Problem [#permalink]

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New post 30 Oct 2008, 11:27
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

Can someone help me set this up in equation form and solve it that way? Thank you.

2. Julia is twice as old as her brother Paolo, who is five times as old as their dog Winnie. In 10 years Julia will be four times as old as Winnie will be then. How old is Paolo?

A 25
B 27
C 30
D 33
E 35

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Re: Algebra Word Problem [#permalink]

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New post 30 Oct 2008, 11:36
J=2P
P=5W
So, J=10W
in 10 years the equation is J+10=4(W+10)
replacing J with 10W gives 10W+10=4W+40
solving the equation W=5
So P=5W=5*5=25
So the ans is A

What is OA?
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Re: Algebra Word Problem [#permalink]

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New post 30 Oct 2008, 11:49
A.

J=2P
P=5W

J+10=4(W+10)
J=10W

10W+10=4W+40
6W=30
W=5

P=5W
P=25

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Re: Algebra Word Problem [#permalink]

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New post 30 Oct 2008, 12:34
(A) is correct.

Thank you.

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Re: Algebra Word Problem   [#permalink] 30 Oct 2008, 12:34
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