Mathematics for IGCSE & O level - Rates (Section 1 - No. 27)
Calculate her average speed, in kilometers per hour. A cyclist rides 0.6 kilometers in 3 minutes.
12 km/h
15 km/h
10 km/h
8 km/h
Giải thích
Convert minutes to hours (3 minutes = 0.05 hours). Speed = Distance / Time. 0.6 km / 0.05 hours = 12 km/h