car traveling at 50 mph ( uses 1 gallon every 30 miles)

[AshvinV429]

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?
1.3/25
2.11/36
3. 7/12
4. 2/3
5. 25/36

[Sage Pearce-Higgins]

What's your question for this one? Please read the forum guidelines before posting (so that you include the correct answer and a specific question alongside the problem).

[vaibhavs570]

Total Distance is 50 * 5 = 250 miles, since speed * rate = distance
Gallon used by car is 250/30 = 25/3
So the fraction of gasoline used to full tank is = 25/3 * 1/12 = 25/36.

IMO 5th option.

[Sage Pearce-Higgins]

Looks good to me.