GMAT PREP 1 - PS - Gallon problem

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GMAT PREP 1 - PS - Gallon problem

by jaganbravo » Fri May 16, 2008 3:38 am
Explanation plz..
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Gallon

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by aatech » Fri May 16, 2008 5:25 am
x+2y+3z=(x+y+z)*1.5

Solve to get x=y+3z.. ANS A