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Proportional Reasoning-1

Checkpoint: comparing, writing and sharing

Five ideas, five questions. Feedback comes as you answer, and you can retry any time.

A rope of 45 m lies beside one of 15 m. What is the ratio of the long rope to the short rope?

A box holds 8 red pens and 12 blue ones. What is the ratio of red pens to all the pens?

Which ratio makes the same comparison as 4 : 5?

Write 300 g to 1.2 kg as a ratio in simplest form.

₹720 is shared in the ratio 5 : 4. What does each get?

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This track

  1. 0 Start here
  2. 1 How much more, and how many times
  3. 2 What 3 : 2 says, and what it does not
  4. 3 The same comparison in bigger numbers
  5. 4 Match the units, then cut it down
  6. 5 Sharing an amount in a ratio
  7. 6 Checkpoint: comparing, writing and sharing
  8. 7 Two ratios that are equal
  9. 8 Find the value of one
  10. 9 When two amounts grow together
  11. 10 A rate is a ratio with units on it
  12. 11 A scale is a ratio you can walk
  13. 12 Checkpoint: proportion, rates and scales
  14. 13 The big picture
  15. 14 Track quiz

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