Work through the levels in order. Type your answer and press Check — open the worked solution if you get stuck. Answers like -6, 3/4 or 0.25 are typed exactly as shown. A ⭐ Bonus Challenge at the end is extra credit — skip it if the rest was hard work.
Level 1 · Warm-up
1 A graph section is flat for 25 minutes. How many minutes was the person stopped?
Show worked solution
25 minutes. Flat = stopped.
2 A line rises from 0 km to 8 km in 1 hour. Speed in km/h?
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8 ÷ 1 = 8 km/h.
3 Rising, flat, falling — which one means travelling back towards the start?
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Falling. Distance from home decreases as you return.
Level 2 · Core
4 A section rises 6 km in 20 minutes. Speed in km/h?
Show worked solution
20 min = 1/3 h, so 6 ÷ (1/3) = 18 km/h.
5 A walker goes 3 km in 45 min, stops 15 min, then walks 3 km further in 60 min. How far from home at the end, in km?
Show worked solution
3 + 3 = 6 km from home — both legs move away from the start.
6 Total distance travelled 24 km, total time 3 hours. Average speed in km/h?
Show worked solution
24 ÷ 3 = 8 km/h.
Level 3 · Challenge
7 A trip: 10 km out in 30 min, 30 min stop, 10 km back in 60 min. Average speed for the whole journey, in km/h?
Show worked solution
Travelled 20 km in 2 h total → 10 km/h. Averaging the leg speeds (20 and 10) would wrongly give 15.
8 Two sections cover the same distance, but section A is steeper than section B. Which took less time — A or B?
Show worked solution
A. Steeper = faster, and covering the same distance faster means less time.
9 A graph ends at 0 km after a 14 km round trip lasting 2 hours. What is the average speed in km/h?
Show worked solution
Average speed uses distance TRAVELLED: 14 ÷ 2 = 7 km/h. Distance from home is 0, but that is a different question.