Reaching the Rig

Oil excavation is a common phenomenon in the sea. At every excavation site a rig is setup to extract the oil. The only mode to reach a rig is by a boat. Men who would like to reach a rig use special purpose boats which can run on crude fuel available at the rigs and the shore. These boats can run a mile for every unit of fuel they consume. Each man on the boat consumes a unit of food for every mil