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Proportional Reasoning-2

Checkpoint: ratios with many terms

Three questions on the new ideas. Feedback comes as you answer, and you can retry any time.

A mix is 7 : 3 : 2. There are 12 spoons of the last ingredient. How many spoons of the first?

A prize of ₹1,500 is shared in the ratio 1 : 2 : 2. How much is the first share?

Are 3 : 4 : 6 and 9 : 12 : 16 in proportion?

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This track

  1. 0 Start here
  2. 1 One circle for the whole set
  3. 2 A slice is a share of the turn
  4. 3 Draw a chart, then check it closes
  5. 4 What a chart says, and what it holds back
  6. 5 Two charts that look the same
  7. 6 When one grows and the other shrinks
  8. 7 Which kind is it, or neither
  9. 8 Workers and days, speed and time
  10. 9 A ratio with three parts
  11. 10 Share a whole in many parts
  12. 11 Checkpoint: ratios with many terms
  13. 12 The big picture
  14. 13 Track quiz

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