One part of a hostel’s monthly expenses is fixed, and the other part is proportional to
the number of its boarders. The hostel collects ₹ 1600 per month from each boarder.
When the number of boarders is 50, the profit of the hostel is ₹ 200 per boarder, and
when the number of boarders is 75, the profit of the hostel is ₹ 250 per boarder. When
the number of boarders is 80, the total profit of the hostel, in INR, will be