Question 896468
number of buses = 300


each bus is used 3 hours per day.


average speed of each bus is 15 miles per hour.


each bus travels 3 * 15 = 45 miles per day.


there are 300 buses, so the total number of miles traveled each day is 300 * 45 = 13,500.


each bus gets an average of 10 miles per gallon.


the number of gallons consumed each day is therefore equal to 13,500 / 10 = 1,350.


each gallon costs $1.20.


the total cost each day is therefore equal to 1,350 * $1.20 = $1,620.


they are doing this for 22 days, so the total cost for the 22 days is equal to 22 * $1,620 = $35,640.


if you combine all of these pieces into one formula, you get:


total cost = 300 * 3 * 15 / 10 *1.20 * 22 = $35,640.


i have no idea where the $1200 comes from.


it has to be an error, or you are reading from the wrong section.