A transport company runs a bus between two places covering a distance of 30 km. The seating capacity of the bus is 30 passengers. The expenses for the month of October 2019 were as follows: Salaries of drivers, conductors, and other staff ₹10,000; Diesel, oil, and lubricants ₹6,000; Repairs and maintenance ₹1,600; Depreciation ₹4,000. The bus ran for 25 days in October 2019, making two round trips. 60% of the capacity was utilized.
(a) Find the cost per passenger-km.
(b) What will be the fare per passenger if the company wants to earn a profit of 20% on sales.