Problem Solving

Hello,

Can anyone explain how to resolve this problem:

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 tank 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

Thanks.

Hi pratyoosh,

This question was discussed many times in BTG.Please search it.you ll find tons of solutions.

If u still have doubts please let us know.

50mph = 30 mpg

12 gallon tank = 12x30 = full tank will give you 360
50mph x 5hrs = 250

250/360=25/36

should be E

Thanks Pkan51.

@ Anand - Thanks for pointing it out, just that its difficult to troll through 1000's of questions to know whether this question has already been asked or not.