Neco 2018 Geography Question 36

An entrepreneur is evaluating two possible routes from City A to City B. Route\,1: total distance \(120\text{ km}\). The first \(60\text{ km}\) can be travelled at a speed limit of \(80\text{ km\,h}^{-1}\), the remaining \(60\text{ km}\) at \(60\text{ km\,h}^{-1}\), and there is a mandatory \(10\)-minute stop for loading. Route\,2: total distance \(150\text{ km}\), travelled at a uniform speed of \(70\text{ km\,h}^{-1}\). A toll of ₦5\,000 is charged on this route. Both routes use a vehicle that consumes fuel at \(7\text{ L}\) per 100\,km on Route\,1 and \(8\text{ L}\) per 100\,km on Route\,2. Fuel costs ₦200 per litre. The value of the driver's time is estimated at ₦150 per hour. Which route results in the lower total monetary cost (fuel + toll + time value)?