Managerial Economics?

[ailia1974]

Qantas operates a fleet of over 100 Boeing jet aircraft. Commercial passenger jets must be operated by a pilot and co-pilot. Many jets carry cargo in their “bellies,” under the passenger seating areas. Consider each of the following costs. Identify which are joint costs of the passenger and belly cargo services, which are fixed costs of passenger services, and which are both.
(a) Cockpit personnel. All jets, large and small, require a pilot and co-pilot. Belly cargo service requires no additional officers in the cockpit.
(b) Airport landing fees. Some airports charge landing fees by weight of the aircraft, while others levy a fixed fee regardless of weight.
(c) Fuel. Larger aircraft and those carrying heavier loads consume relatively more fuel.