Answer:
The average operating cost is $0.46 per mile
In deciding whether to to her use her own car or rent a car the costs are analysed below:
Variable operating cost is a relevant cost
Depreciation is not relevant as it is already cost and also it is sunk cost
insurance is not relevant as well
automobile tax and license is not relevant as it would be paid regardless of the option chosen
Explanation:
The average cost comprises of the variable operating cost per mile as well as the fixed operating cost per mile
variable operating cost per mile is $0.06
fixed cost operating cost=fixed costs/total miles driven=($3,350+$1,700+$900+$450)/16000=$6400
/16000=$0.40
average cost per mile=$0.06+$0.40=$0.46
