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Joined: 06 Oct 2004
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ps ques [#permalink] New post 16 Mar 2005, 18:21
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A
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0% (00:00) correct 0% (00:00) wrong based on 0 sessions
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


Pls explain!!!1
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 [#permalink] New post 16 Mar 2005, 18:56
"A"...1:2

If X and Y were numbers in 1996 for car and truck, then in 1997 they wud be 0.89X and 1.07Y


Also given total was 1 % more in 1997 so

(X+Y)1.01 = 0.89X + 1.07Y

Asking X/Y = R

101(R+1) = 89R+107

R = 1/2
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 [#permalink] New post 18 Mar 2005, 05:35
1996=> x+y => revenue cars and trucks
1997=> 0,89x+1,07y=1,01(x+y)=>0,06y=0,12x=>0,06/0,12=x/y=>1/2=x/y
  [#permalink] 18 Mar 2005, 05:35
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