Solution - D
Jake went from using 10,000 / 35 = 285.7 gallons of fuel in a year to 10,000 / 50 = 200 gallons of fuel in a year. Which equals a savings of approximately 86 gallons of fuel.
Max on the other hand went from using 10,000 / 15 = 666.7 gallons of fuel in a year to 10,000 / 25 = 400 gallons of fuel in a year. Which equals a savings of approximately 267 gallons of fuel.
Hence Max decreased his fuel usage by 267 – 86 = 181 more gallons then Jake
GMAT Quantitative Question
Jake and Max are both trading in their cars to get more fuel efficient cars.
Jake is planning on trading in his 35 m.p.g. for one that gets 50 m.p.g while Max is swapping his 15 m.p.g. vehicle for a 25 m.p.g. model. If both Jake and Max drive 10,000 miles over the next year, who will have decreased his fuel usage more and by how many more gallons then his conterpart?
m.p.g = Miles Per Gallon
Answers
- A) Jake decreased his fuel usage by 333 more gallons then Max
- B) Jake decreased his fuel usage by 148 more gallons then Max
- C) Jake decreased his fuel usage by 86 more gallons then Max
- D) Max decreased his fuel usage by 181 more gallons then Jake
- E) Max decreased his fuel usage by 241 more gallons then Jake
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