Gce Model Questions Vol1 2023 Geography Question 49

A driver can choose between two routes to travel from town A to town B. **Route A**: total distance \(120\) km. 20 % of the distance is urban, where the average speed is \(40\) km h⁻¹; the remaining 80 % is at the speed limit \(80\) km h⁻¹. There is a toll of £5. The vehicle uses \(7\) L per 100 km and fuel costs £1.30 per litre. **Route B**: total distance \(150\) km. 30 % of the distance is mountainous, where the average speed is \(50\) km h⁻¹; the remaining 70 % is at the speed limit \(100\) km h⁻¹. No tolls. The vehicle uses \(8\) L per 100 km. The driver wants the total travel cost (fuel plus any tolls) to be as low as possible while keeping the total travel time under \(2.5\) hours. Which route should the driver take and what is the total cost for that route?