a) You drive [[$ 138 $]] kilometres with your new red Ferrari. The travel time is [[$ 1.5 $]] h. What is your average speed?



Answer: My average speed is km/h.

b) What is the average speed of the short distance runner (km / h) when their time in the [[$ 100 $]] m race is [[$ 9.85 $]] s?



Answer: The average speed of the runner is approximately km/h.

c) Uncle Dan praises that he drove from Hanko to Joensuu in three hours. The distance from Hanko to Joensuu is 547 km. Calculate and think, can Dan's story be true?

Answer: Dan's story is true not true, because .