SOLUTION: At a car dealership,3/10 of the vehicles are trucks, 1/5 are sports cars, and the rest are vans. If there are 90 trucks, how many vans are there?

Algebra ->  Algebra  -> Percentage-and-ratio-word-problems -> SOLUTION: At a car dealership,3/10 of the vehicles are trucks, 1/5 are sports cars, and the rest are vans. If there are 90 trucks, how many vans are there?      Log On

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Question 197340: At a car dealership,3/10 of the vehicles are trucks, 1/5 are sports cars, and the rest are vans. If there are 90 trucks, how many vans are there?
Answer by Mathtut(3670) About Me  (Show Source):
You can put this solution on YOUR website!
the number of vans is 1-3/10-2/10=5/10 of all vehicles
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x=total number of vehicles
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3/10x=90 --->3x=900 --->x=300 trucks
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vans =5/10(300)=150 # of vans
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