Sita and Simran wanted to go for a vacation with their families and booked two cars
individually in zoomcar.com. The rent for the car for 12 hours is fixed and above that, additional
amount will be collected for every hour. Sita paid Rs.4600 for 17 hours, while Simran paid, Rs.
3800 for 13 hours. Calculate the fixed charge and extra charge per hour.