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Find drawing lengths and the scale of a drawing

7th grade (Year 8 in England) · 16 questions · Common Core: 7.G.A.1 · England: KS3 Ratio, proportion and rates of change, KS3 Geometry and measures

Name

Date

Score/ 16

  1. Question 1

    A 2 m long room is drawn 2 cm long on a plan. The scale is 1 : n. What is n?

    Answer

  2. Question 2

    A model uses 1 cm for every 4 m. A real bridge is 20 m long. How long is it on the model, in cm?

    Answer

  3. Question 3

    On a drawing with scale 1 cm : 5 m, a path is 16 cm long. The drawing is redrawn with scale 1 cm : 20 m. How long is the path on the new drawing, in cm?

    Answer

  4. Question 4

    A 0.8 m long room is drawn 4 cm long on a plan. The scale is 1 : n. What is n?

    Answer

  5. Question 5

    A model uses 1 cm for every 2 m. A real bridge is 8 m long. How long is it on the model, in cm?

    Answer

  6. Question 6

    On a drawing with scale 1 cm : 5 m, a path is 9 cm long. The drawing is redrawn with scale 1 cm : 15 m. How long is the path on the new drawing, in cm?

    Answer

  7. Question 7

    A 6 m long room is drawn 12 cm long on a plan. The scale is 1 : n. What is n?

    Answer

  8. Question 8

    A model uses 1 cm for every 10 m. A real bridge is 60 m long. How long is it on the model, in cm?

    Answer

  9. Question 9

    On a drawing with scale 1 cm : 4 m, a path is 6 cm long. The drawing is redrawn with scale 1 cm : 8 m. How long is the path on the new drawing, in cm?

    Answer

  10. Question 10

    A 10 m long room is drawn 5 cm long on a plan. The scale is 1 : n. What is n?

    Answer

  11. Question 11

    A model uses 1 cm for every 4 m. A real bridge is 32 m long. How long is it on the model, in cm?

    Answer

  12. Question 12

    On a drawing with scale 1 cm : 4 m, a path is 28 cm long. The drawing is redrawn with scale 1 cm : 16 m. How long is the path on the new drawing, in cm?

    Answer

  13. Question 13

    A 14 m long room is drawn 7 cm long on a plan. The scale is 1 : n. What is n?

    Answer

  14. Question 14

    A model uses 1 cm for every 4 m. A real bridge is 20 m long. How long is it on the model, in cm?

    Answer

  15. Question 15

    On a drawing with scale 1 cm : 4 m, a path is 8 cm long. The drawing is redrawn with scale 1 cm : 8 m. How long is the path on the new drawing, in cm?

    Answer

  16. Question 16

    A 22 m long room is drawn 11 cm long on a plan. The scale is 1 : n. What is n?

    Answer

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  1. 100
  2. 5
  3. 4
  4. 20
  5. 4
  6. 3
  7. 50
  8. 6
  9. 3
  10. 200
  11. 8
  12. 7
  13. 200
  14. 5
  15. 4
  16. 200