Mathematics for IGCSE & O level - Ratio And Proportion (Section 5 - No. 8)
A cyclist travels 90 km in 3 hours. At the same speed, how far will the cyclist travel in 5 hours?
135 km
150 km
180 km
270 km
คำอธิบาย
Speed is 90/3=30. So distance= 30*5=150