Neco 2019 Geography Question 16

A factory needs to transport 20\,tonnes of cargo from Port\,A to Factory\,B. Two possible routes are offered:\n\n- Route\,1 (road only): distance 240\,km, average speed \(60\ \text{km h}^{-1}\), fuel consumption 0.35\,L\,km\(^{-1}\), fuel price \(\text{₦}165\ \text{L}^{-1}\), tolls \(\text{₦}2,500\).\n\n- Route\,2 (rail + road): rail from Port\,A to Junction\,C (150\,km) at \(80\ \text{km h}^{-1}\) costing \(\text{₦}0.90\) per tonne‑km; road from C to B (80\,km) at \(50\ \text{km h}^{-1}\) with fuel consumption 0.30\,L\,km\(^{-1}\), same fuel price, tolls on the road segment \(\text{₦}1,200\).\n\nWhich route has the lower total cost? State the cheaper route and the cost difference (cheaper route cost minus the other route cost) in Naira, rounded to the nearest Naira.