Need some help on this, showing some working out would help.

Question

A rent-a-car firm has Holdens and Toyotas for hire. Each day there is a demand for at least 5 Holdens and no more than 10 Toyotas. There is never a demand for more than 20 cars on any one day. If it costs $40 per day to hire a Holden and $50 per day to hire a Toyota, what is the maximum amount-the hire firm will receive in a day?

Answer 1

Hint:

Toyotas receive the highest price.  There are no more than 10 Toyotas rented in a day so to get the maximum amount from rentals the firm will rent 10 Toyotas.  The rental of both cars together are 20.

 

Hope this helps.  Good luck!