## Speed Exercise

1. (a) A cyclist travels 100 km in 4 hours. What is her average speed?

(b) A train travels from Newcastle to Sydney a distance of 171 km. The journey takes 3 hours. What is the average speed of the train?

(c) If a bus leaves Wellington at 9.00 am and arrives in Palmerston North at noon on the same day, what is the averge speed of the bus if the distance travelled is 144 km?

2. (a) A man runs a 42 km marathon at an average speed of 13 km per hour. How long will it take him to run the marathon?

(b) A plane covers a 1755 km flight at an average speed of 390 km/h. How long does the journey take?

(c) A sprinter covers 100 metres at an average speed of 10 metres per second. How long does it take him?

3. (a) A cruise ship takes 3 full days to travel between two islands at an average speed of 20 km/h. What is the distance between the two islands?

(b) A speed boat travels for half an hour at a average speed of 70 km/h. How far does the boat travel?

(c) A truck travels for five and a quarter hours at 95 km/h. How far does it travel? 4. If a car travels for 2 hours at an average speed of 85 km/h and then for 3 hours at 90 km/h, How far does the car travel altogether? What is the average speed of the car for the whole journey?
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