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Virginia, Adrienne, and Dennis have taught history for a [#permalink]

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31 Jul 2003, 14:32

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A

B

C

D

E

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Virginia, Adrienne, and Dennis have taught history for a combined total of 96 years. If Virginia has taught for 9 more years than Adrienne and for 9 fewer years than Dennis, for how many years has Dennis taught?

Re: PS: Who can come up with best algebra solution [#permalink]

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31 Jul 2003, 14:36

Curly05 wrote:

Virginia, Adrienne, and Dennis have taught history for a combined total of 96 years. If Virginia has taught for 9 more years than Adrienne and for 9 fewer years than Dennis, for how many years has Dennis taught?

Why am I wrong in my setup?

V= A + 9 A= A D= V + 9= ( A + 9) + 9

D= A + 18

Nothing. Now that you have V, A, and D all in terms of A, is there a relationship among V, A, and D that you can use?
_________________

Best,

AkamaiBrah Former Senior Instructor, Manhattan GMAT and VeritasPrep Vice President, Midtown NYC Investment Bank, Structured Finance IT MFE, Haas School of Business, UC Berkeley, Class of 2005 MBA, Anderson School of Management, UCLA, Class of 1993

Yep, express everything in terms of A doesn't work out for some reason, I mean I got the answer using another algebra relationship but this one doesn't work out.
_________________

If you write the question right, Denise has thaught 9 years more than Victor- So:
it shouldbe like:
V=a+9
D=v-9
so, the equation is:
a+9a+a+9-9=96
a=29
d=29
v=38