1. If the rollercoaster travelled at a speed of 12.5 km/hour, how far was a three minute ride ? Give your answer in m and km.

2. If 90 % of the 200 people on the rollercoaster ride were wearing hats, how many were not ?

3. Work out the gradient of the rollercoaster ride using Pythagoras’s theory, is it measured 120 m long and 75 m wide.

4. The rollercoaster ride had places for 100 people but was only 45% full – how many more places were there ?

5. If one ticket cost £3, how much did 12 tickets cost ?

6. The rollercoaster ride went downhill 10% faster than uphill. If it travelled uphill at a speed of 75 km, how fast did it travel downhill ?

© Jacqueline Richards 2007 Answers : 1. 12.5 / 60 x 3 = 0.624 km (624 m); 2. 200 – (200 / 100 x 90 = 180) = 20; 3. x x x = (75 x 75) + (120 x 120) = (5625 + 14 400) = 20025 = 141.509 m; 4. 65; 5. 12 x 3 = £36; 6. 82.5 km / hr

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