Answer:
The revenue we earned for 1 day by renting the rooms equals $2450.
Step-by-step explanation:
Since we rent 50 rooms at the rate of $100 per room thus the overall revenue that we earn equals

Now the expenditures include:
1) Fixed daily cost = $1500
2) Maintenance cost = $300
3) Variable cost = $15 thus cost for 50 rooms equals = 15x50= $750
Thus the total expenditure on the hotel is the sum of all the above charges
thus

Thus the net revenue is the difference in total revenue and the total expenditure
Thus Net Revenue =$5000-$2550=$2450