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2013 AMC 12B Question 4

AMC12 · 2013 AMC 12B

Question 4

Ray’s car averages $40$ miles per gallon of gasoline, and Tom’s car averages $10$ 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?
  1. $10$
  2. $16$
  3. $25$
  4. $30$
  5. $40$