Question

A hospital performs 3 types of operations. The first type takes 30 minutes, and they charge $1000 for it. The second type takes 1 hour, and they charge $1500 for it. The third operation takes 2 hours, and they charge $2000 for it. The hospital can schedule up to 95 total operations per day. Moreover, they have 5 operating rooms, each of which can be used for 10 hours per day. Determine how many of each type of operation the hospital would perform to maximize its revenue.
Number of 30 min operations =?
Number of 1h operations =?
Number of 2h operations = 0

I can't figure out the rest, help please? Thanks in advance !