Q: A certain car uses 12 gallons of gasoline in traveling 360 miles. In order for the car to travel the same distance using 10 gallons of gasoline, by how many miles per gallon must the car’s gas mileage be increased?
Options:
(A) 2
(B) 4
(C) 6
(D) 8
(E) 10 Let's give some random thoughts before answering.

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
360/10 = 36. The difference is 36 - 30 = 6.
Therefore, the answer is (C).