Scale and Proportion in ContextEdexcel GCSE Maths: Subtopic test
10 questions, 26 marks
Edexcel GCSE Maths
Scale and Proportion in Context
Total 26 marks
Name
Class
Date
- 1A model of a bridge is built using a scale of 1 : 250. On the model, the length of the bridge is 60 cm.(a)What is the real length of the bridge, in metres?[1 mark]
- A15 m
- B1500 m
- C150 m
- D25 m
(b)Using the same scale, the real width of the bridge is 12.5 m. What is the width of the model, in centimetres?[1 mark]- A3.125 cm
- B5 cm
- C31.25 cm
- D50 cm
(c)The area of the model bridge's deck is 240 cm². What is the area of the real bridge's deck, in m²?[1 mark]- A15 m²
- B6000 m²
- C150000 m²
- D1500 m²
Total for question 1: 3 marks
- 2A charity shares a donation of £4200 between three projects, Water, Health and Education, in the ratio 2 : 3 : 5.(a)Calculate the amount given to the Health project.[2 marks](b)The following year, the total donation increases so that the Education project alone receives £3000, with the same ratio 2 : 3 : 5 applied to the new total. Work out the new total donation.[2 marks]
Total for question 2: 4 marks
- 3A car travels at a constant speed and covers 180 km in 2 hours 30 minutes.(a)Show that the car's average speed is 72 km/h.[3 marks](b)The car then travels a further 108 km at the same average speed of 72 km/h before stopping for fuel. Work out the total time, in hours and minutes, for the whole 288 km journey (180 km plus 108 km).[3 marks]
Total for question 3: 6 marks
- 4A scale drawing of a garden is drawn using a scale of 1 : 400, meaning 1 cm on the drawing represents 400 cm in real life. On the drawing, the garden is a rectangle measuring 8 cm by 5 cm.(a)Calculate the real-life area of the garden in m².[4 marks](b)A pond in the real garden has an area of 18 m². Calculate the area of the pond as it would appear on the scale drawing, in cm².[4 marks](c)The garden owner wants to build a scale model of a shed for the garden, using the same scale of 1 : 400. The real shed is a cuboid with volume 6 m³. Explain why the volume of the scale model of the shed, in cm³, is , and calculate this volume, giving your answer to 3 significant figures.[5 marks]
Total for question 4: 13 marks
End of questions