In the 757, there are 50X tourist seats, and 30X economy seats, and 32X 1st class seats.
For the 767, the equation is 75Y tourist, 45Y economy, and 50Z 1st class.
Now solving these directly gives X = 0.179487179, Y = 3.912820513, and Z = 0.153846154, but X, Y, and Z need to be integers. If we look at 4 767's, they can seat 4*75=300 tourist, 4*45=180 economy, amd 4*50=200 1st class. To meet this requirement of that fact that a little more space is needed, one of any plane will do the job.
The recommendations would be to get 4 767's and 1 more of any type.
In choosing the last one, all costs of the airplane should be looked at including any flying fees, price of jet fuel, and cost of wear and tear on the plane.
Depending on which one is more important, the choice will vary.
---------- FOLLOW-UP ---------- QUESTION: Campus Express offers college students summer charter trips in Europe.
The company flies three kinds of airplanes: the Airbus 100, the Airbus 200, and the Airbus 300.
The number of each kind of seat in the three types of planes is shown below.
The second chart lists the number of reservations for its July flight to France.
Expert: Scott A Wilson - 5/14/2010 Question QUESTION: A flying company offers trips in Europe.