A car gets 40 kilometers per gallon of gasoline. How many gallons of gasoline would the car need to travel 210 kilometers?	Choose the correct choice
A) 8.25 gallons B) 7.5 gallons C) 6.55 gallons D) 5.25 gallons E) 4.5 gallons

Rationale: "each 40 kilometers , 1 gallon is needed . we need to know how many 40 kilometers are there in 210 kilometers ? 210 / 40 = 5.25 * 1 gallon = 5.25 gallons correct answer d"
Answer: D