Background
Fuel may be delivered using either vanessa carrier with a capacity of 10 900 tons, or the Alexander tanker with a capacity of 40 000 tonnes. Fuel depot supplies an average of 6ML of fuel per week to filling stations in east easterly northy bujiberry.
When fully laden the depth of vanessa is 12.6m, alexander 12.5m
safety requirements are 2m
determine the maximum amount of hours each of the ships can be in port
