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manhattan gmat word translations

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manhattan gmat word translations

by resilient » Tue Feb 12, 2008 5:11 pm
in used car lot, there are three times as many red cars as green cars. If tommorow 12 green cars are sold and 3 red cars are added,then there will be 6 times as many red cars as green cars. How many green cars are currently in the lot?

I cant grasp why "there are three times as many red cars as green cars" translates to r=3g . I keep translating it to 3g=r but i dont see why i am wrong? also how does 3+r=6(g-12) translate from "if 12 green cars are sold and 3 red cars are added, there will be 6 times as many green ones"..

any help? also where could I go for translation tutorial?
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mm

by meghamehta15 » Tue Feb 12, 2008 7:18 pm
hey seems like ur translation is right...

g= green cars
and r= red cars

r=3g

6(g-12) = 3+r
6g-72=3+3g
3g=72
g=25

Is 25 green cars the right answer?
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