Evan Washes Two Types Of Vehicles. It Takes Him 30 Minutes To Wash A Car And 40 Minutes To Wash A Truck. He Charges $12 To Wash A Car And $15 To Wash

Evan washes two types of vehicles. It takes him 30 minutes to wash a car and 40 minutes to wash a truck. He charges $12 to wash a car and $15 to wash a truck. In 270 minutes, Evan made $105 washing cars and trucks. How many trucks did Evan wash?

Evan only washed 3 trucks.




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