At a speed of 50 miles per hour, a certain car uses 1 gallon of gasoline every 30 miles. If the car starts with a full 12 gallon take of gasoline and travels for 5 hours at 50 miles per hour, the amount of gasoline used would be what fraction of a full tank?
A) 3/25

B) 11/36

C) 7/12

D) 2/3

E) 25/36

For the car travelling @50mph for 5hrs will cover a distance of 250 m.
Now 1 G ----- 30 m hence 250/30 G in 250 m
Now to find the fraction - (25/3)*(1/12)

Ans - E