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Problem-Solving and Data AnalysisEasyUnit rate: miles per gallon

Problem-Solving and Data Analysis practice question

A car uses 6 gallons of fuel to travel 180 miles. At this rate, how many miles does the car travel per gallon?

Answer: 30

Miles per gallon means miles divided by gallons: 180 / 6 = 30.

Common wrong answers

If you answered 174
174 is 180 − 6. A rate is a division, not a subtraction.
If you answered 1080
1,080 is 180 × 6. Per gallon means divide the miles by the gallons.
If you answered 0.03
0.03 is about 6 / 180 — gallons per mile, the reciprocal of what was asked.

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