Speed, Distance & Time: Hard Test 2

15 questions · 15 minutes

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A cyclist rides 24 km at 24 km/h and then a further 24 km at 8 km/h. What is the average speed for the whole ride?
A speed of 25 m/s is the same as which speed in kilometres per hour?
A train leaves at 14:25 and arrives at 17:10, having travelled 220 km. What is its average speed?
Two cyclists are 60 km apart and ride towards each other at 14 km/h and 16 km/h. How long is it before they meet?
A journey takes 3 hours at a steady 70 km/h. How long would the same journey take at a steady 84 km/h?

On a distance-time graph, a steeper line means faster, and a flat line means stopped.
Use the formula triangle with distance on top and speed and time below. Cover the quantity you want and the triangle shows the calculation.