Mathematics for IGCSE & O level - Ratio And Proportion (Section 5 - No. 4)
A car travels 180 km on 15 litres of petrol. How far will it travel on 25 litres of petrol, assuming a constant rate?
270 km
300 km
360 km
400 km
คำอธิบาย
180 km / 15 liters = 12 km/liter. 25 liters * 12 km/liter = 300 km