Suppose you manage a delivery company and you must choose between two transportation methods: (a) truck or (b) train. (a)trucks: costs u$ 26,000 upfront. for each mile it runs it costs u$ 2.00 in gas. maintenance costs u$ 4,000 per year and additional u$ 1.00 per mile run. (b)train: to lease a container that carries the same volume of orders as the truck it costs u$ 10.000 per year. in addition it costs u$ 4.00 per mile to move orders around. suppose you had to transport packages over 5000 miles in 2017. what's your average cost for that year ?
a: u$ 6.60 for (a) truck and us 2.80 for (b) train.
b: u$ 9.00 for (a) truck and u$ 6.00 for (b) train.
c: u$ 3.00 for (a) truck and u$ 4.00 for (b) train.
d: u$ 6.00 for (a) truck and u$ 2.00 for (b) train.

The correct answer is (B) U$ 9.00 for (a) truck and U$ 6.00 for (b) train.

Explanation:

Average Cost = Total Cost/ Total miles Run = Total Cost/ 5000

Total Miles Run = 5000

a) Calculations FOR TRUCK

Data that is given:

$ 26,000 upfront;

U$ 2.00 in gas per mile run

Maintenance costs U$ 4,000 per year

Additional U$ 1.00 per mile run

Total Miles Run = 5000

 Total Cost = 26000 + 2*Total Miles Run + 4000 + 1*Total Miles Run = 26000+2*5000+4000+5000= $45000

⇒Average Cost of a TRUCK = Total Cost/5000 = 45000/5000 = $9

b) Calculations for train:

It costs U$ 10.000 per year

$ 4.00 per mile to move orders around

Total Cost for Train = 10000 + 4*Total Miles Run = 10,000 + 4*5000 = 30,000.

⇒Average Cost of Train for That year = Total Cost of Train/ 5000 = 30,000/5,000 = $6

So, $9.00 for truck and $6.00 for train.

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88 because 4 plus 4 equals 8. 40 plus 40 equals 80. 80 plus 8 equals 88