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Scale models with a ratio scale

Year 7 maths · Fieldbook Learning

Name ______________________ Date __________

A scale of 1 : n means every length is n times as long in real life.

  1. A model uses the scale 1 : 500. A part of the model is 6 cm long. How long is the real part, in cm?
  2. A model uses the scale 1 : 200. A part of the model is 4 cm long. How long is the real part, in cm?
  3. A model uses the scale 1 : 500. A part of the model is 7 cm long. How long is the real part, in cm?
  4. A model uses the scale 1 : 250. A part of the model is 6 cm long. How long is the real part, in cm?
  5. A model uses the scale 1 : 10. A part of the model is 10 cm long. How long is the real part, in cm?
  6. A model uses the scale 1 : 500. A part of the model is 12 cm long. How long is the real part, in cm?
  7. A model uses the scale 1 : 250. A part of the model is 30 cm long. How long is the real part, in cm?
  8. A model uses the scale 1 : 100. A part of the model is 10 cm long. How long is the real part, in cm?
  9. A model uses the scale 1 : 50. A part of the model is 24 cm long. How long is the real part, in cm?
  10. A model uses the scale 1 : 10. A part of the model is 37 cm long. How long is the real part, in cm?
  11. A model uses the scale 1 : 200. A part of the model is 22 cm long. How long is the real part, in cm?
  12. A model uses the scale 1 : 25. A part of the model is 14 cm long. How long is the real part, in cm?
  13. A model uses the scale 1 : 250. A part of the model is 31 cm long. How long is the real part, in cm?
  14. A model uses the scale 1 : 500. A part of the model is 31 cm long. How long is the real part, in cm?
  15. A model uses the scale 1 : 50. A part of the model is 58 cm long. How long is the real part, in cm?
  16. A model uses the scale 1 : 250. A part of the model is 15 cm long. How long is the real part, in cm?
  17. A model uses the scale 1 : 200. A part of the model is 99 cm long. How long is the real part, in cm?
  18. A model uses the scale 1 : 20. A part of the model is 58 cm long. How long is the real part, in cm?
  19. A model uses the scale 1 : 200. A part of the model is 86 cm long. How long is the real part, in cm?
  20. A model uses the scale 1 : 50. A part of the model is 90 cm long. How long is the real part, in cm?
More free practice: fieldbooklearning.com/au/practice/year-7/scale-models-with-a-ratio-scale/

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Answer key: Scale models with a ratio scale

  1. 3000
  2. 800
  3. 3500
  4. 1500
  5. 100
  6. 6000
  7. 7500
  8. 1000
  9. 1200
  10. 370
  11. 4400
  12. 350
  13. 7750
  14. 15500
  15. 2900
  16. 3750
  17. 19800
  18. 1160
  19. 17200
  20. 4500