Question

A toll bridge charges $1.00 for passenger cars and $2.50 for other vehicles. suppose that during daytime hours, 65% of all vehicles are passenger cars. if 20 vehicles cross the bridge during a particular daytime period, what is the resulting expected toll revenue?

Answer 1

The first step to answering the question is to calculate how many passenger cars actually crossed the bridge during daytime hours. To do this we find out what 65% of 20 vehicles is: .65 * 20 = 13 passenger cars. This also means that the remaining 7 vehicles are classified as other vehicles. Now, we take these numbers and multiply them by their respective toll charges and then sum both resulting answers together to get the total revenue: (13 * $1.00) + (7 * $2.50) = $13 + $17.50 = $30.50