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Direct or inverse proportion?

Exercise and reference answers

Items
  1. Item
    Petrol, distance
    Category
    Direct
  2. Item
    Weight and cost
    Category
    Direct
  3. Item
    Ratio stays fixed
    Category
    Direct
  4. Item
    Workers and days
    Category
    Inverse
  5. Item
    Speed and time
    Category
    Inverse
  6. Item
    Product is fixed
    Category
    Inverse
Categories
  1. Item
    Direct
  2. Item
    Inverse
Instructions
Tap a pair of quantities, then tap how they vary together.

Explanation

_Source: syllabus Maths Ch11 Direct and Inverse Proportions, 11.2 Direct Proportion_
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