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Fill in the blank with the suitable number
Question 1: Jack rides his horse with a constant speed of 12 miles per hour. How far can he travel in /hours? Answer: 
 miles.
Question 2: An airplane flies with a constant speed of 810 miles per hour. How far can it travel in / hours? Answer: 
 miles.
Question 3: Bob roller skates with a constant speed of 14 miles per hour. How far can he travel in / hour? Answer: 
 miles.
Question 4: Emily rides her bike with a constant speed of 12km/h. How far can she travel in 3 hours? Answer: 
km.
Question 5: A car traveled at 50km/h for 2 hours and at 60km/h for 3 hours. What is the car’s average speed? Answer: 
km/h
Question 6: John drove from Town A to Town B in 5 hours. His average speed for the first 3.5 hours was 64km/h. His average speed for the last 1.5 hours was 60km/h. What was the total distance he traveled?  Answer: 
km.
Question 7: The distance between John’s home and the park is 3000m. John walked from his home to the park at a speed of 100m per minute and then walked back home at a speed of 150m per minute. What is the John’s average speed in meter per minute?  Answer: 
 meter per minute.
Question 8: Bob drove from City P to City Q. He traveled the first 36km at an average speed of 54km/h. He traveled the remaining 96km at a average speed of 72km/h. Find his average speed for the whole trip. Answer: 
km/h.
Question 9: A train crosses a tree in 10 second and a bridge 225m long in 25 second. Find the length of the train. / Answer: 
m.
Question 10: Peter and Jacob were running. Both of them run with their constant speeds. They started at the same time and the same place. When Jacob reached the finishing line, Peter had only run / of what Jacob had run. Jacob’s speed is 75m/min (metre per minute) faster than Peter. What was Peter’s speed in m/min?  / Answer: 
 m/min.

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