Question

Test of a new car results in 310 miles on 20 gallons of gas, how far could you drive on 50 gallons of gas? what is the cars gas mileage?

Answer 1

775 miles

Mileage = 15.5 miles per gallon of gas.

Explanation:

Test of a new car results in 310 miles on 20 gallons of gas.

We have to calculate the number of miles that the car goes on 50 gallons of gas.

If the mileage of the car is constant, then we can use the unitary method to get the number of miles the car goes on 50 gallons of gas.

Therefore, the car will go
`(310 * 50)/(20) = 775` miles with 50 gallons of gas.

Now, the mileage of the car will be
`(310)/(20) = 15.5` miles per gallon of gas. (Answer)