Question

9. A tortoise moves a distance of 100 metres in 15 minutes. What is the average speed of tortoise in km/h?

Answer 1

Average speed= Total distance ÷ Total time taken
Conversions:-
100 m= 1/10 km
15 mins= 1/4 hr 

∴ Average speed of the tortoise = 1/10 ÷ 1/4  km/h
                                                 =  2/5 km/h
                                                 =  0.4 km/h