Question

Ben and his two friends are going on a 1,500-mile road trip. The car uses 3 and one-fourth gallons of gas every 100 miles. Gas costs $3.80 per gallon.

If Ben and his two friends split the cost of the gas evenly, how much will they each pay?

Answer 1

Each will pay $61.75.

Explanation:

How many gallons were used?

Each 100 miles, 3 + 1/4 = 3 + 0.25 = 3.25 gallons are used. The trip has 1500 miles.

100 miles - 3.25 gallons

1500 miles - x gallons

`100x = 1500*3.25`

`x = (1500*3.25)/(100)`

`x = 48.75`

Cost

Each gallons costs $3.80.

48.75 gallons cost 48.75*3.80 = $185.25

Split among the three friends envenly, how much will each pay?

185.25/3 = 61.75

Each will pay $61.75.