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# Q34: A certain company that sells only cars and trucks

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Manager
Joined: 03 Oct 2008
Posts: 61
Q34: A certain company that sells only cars and trucks [#permalink]

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04 Oct 2008, 10:06
Q34:
A certain company that sells only cars and trucks reported that revenues from car sales in 1997 were down 11 percent from 1996 and revenues from truck sales in 1997 were up 7 percent from 1996. If total revenues from car sales and truck sales in 1997 were up 1 percent from 1996, what is the ratio of revenue from car sales in 1996 to revenue from truck sales in 1996?

A. 1 : 2
B. 4 : 5
C. 1 : 1
D. 3 : 2
E. 5 : 3

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Manager
Joined: 27 Sep 2008
Posts: 76

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04 Oct 2008, 10:22
c -> 0.89x

t -> 1.07y

c+t -> 1.01(c+t)

1.01(c+t) = 0.89c+1.07t

1.01c+1.01t = 0.89c+1.07t

0.12c-0.06t = 0

0.12c = 0.06t

c/t = 2/1

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Re: math   [#permalink] 04 Oct 2008, 10:22
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# Q34: A certain company that sells only cars and trucks

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