It's good to carpool.
Nate and Ian are planning to go camping with three friends over the weekend.
Nate wants to arrive to the campsite.
Nate suggests they all ride together, and they drive to the campsite in Ian's car.
Nate suggests the group travel separately and everyone goes in the own car.
The group is able to make it to the campsite and each person saves money by contributing the fill one tank.
Each person must get gas and the group spends $60 each to fill their tanks.