2013 AMC 10B Problem 8
Problem 8 of 25EasierAlgebra
Ray’s car averages miles per gallon of gasoline, and Tom’s car averages miles per gallon of gasoline. Ray and Tom each drive the same number of miles. What is the cars’ combined rate of miles per gallon of gasoline?
Answer choices
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Solution
Let each car drive miles. Together they drive miles.
Ray uses gallon, while Tom uses gallons, so together they use gallons.
The combined rate is miles per gallon.
Thus, the correct answer is B .