A book-rental shop has a pricing system that includes a fixed charge for the first two days and a extra charge for every day beyond that. If Latika is billed ₹22 for renting a book for 6 days and Anand is billed ₹16 for renting the same book for 4 days. Determine both the fixed fee and the additional charge per extra day.
 
Answer:
 
The fixed charge is \(Rs.\).
 
The charge for each extra day is \(Rs.\).