PSAT Math Multiple-Choice Practice Question 268
Question: 268
A mechanic purchases 18 gallons of oil to complete a number of oil changes. If he needs 
a gallon of oil for each car, how many oil changes can he do before he runs out?
Correct Answer: B
Explanation:
The mechanic can do 60 oil changes because 18 gallons รท 0.3 gallons per car = 60 oil changes. See Lesson: Solving Real-World Mathematical Problems.
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