Câu 115: GMAT Section 2: Quantitative

M.A. S (Most Affordable Speed) is defined as the speed where the fuel consumption of a car is the lowest. The average family car consumes 3 liters of fuel per 36 kilometers at the M.A. S with only one passenger (the driver). A pickup truck consumes twice as much as a family car does. Assuming the fuel consumption of both cars rises by % of the original consumption for each additional passenger, how many km per litter would a pickup truck do if the driver has three additional passengers?

1. A. 10 km.
2. B. 5.8 km.
3. C. 6 km.
4. D. 5.4 km. — đáp án hiện tại
5. E. 4 km.