Each day Lara’s mom drives her to school. On the way, she picks up three of Lara’s friends, Chan, Jason and Marla.
Each afternoon, she returns by the same route and drops them off at their homes.
This map is drawn to scale.
It shows where each person lives and the route taken by Lara’s mom.
At the end of a term, the four students agree to pay $300 in total towards the cost of the gasoline.
School
Lara Chan
Marla
I think Lara should pay the most as she has had further to travel.
Jason
Yes, I think we should share the cost according to how far we travel in the car.
The people who are in the car for part of the journey should share the cost equally for that part.
How much should each person pay? Try to find the fairest possible method. Show all your work.