The distance that a bus can go without refueling varies directly with the number of gallons of gasoline in the tank. If the bus can go 247 miles on a full tank of gas (13 gallons), how far can it go on 8 gallons of gas?
A) 152 miles
B) 161 miles
C) 133 miles
D) 157 miles
E) none of these

Question

Quizplus · Accepted Answer

The distance varies directly with the gallons of gasoline, so we use the formula: distance = (miles per gallon) * gallons. Given 247 miles for 13 gallons, the bus travels 247/13 = 19 miles per gallon. For 8 gallons, it can go 19 * 8 = 152 miles.

The Distance That a Bus Can Go Without Refueling Varies