text: # Search by Topic
  
  #### Resources tagged with Direct & inverse proportion similar to Balancing 2:
  
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  ### There are 11 results
  
  Broad Topics > Fractions, Decimals, Percentages, Ratio and Proportion > Direct & inverse proportion
  
  ### Balancing 1
  
  ##### Stage: 3 Challenge Level:
  
  Meg and Mo need to hang their marbles so that they balance. Use the interactivity to experiment and find out what they need to do.
  
  ### Balancing 3
  
  ##### Stage: 3 Challenge Level:
  
  Mo has left, but Meg is still experimenting. Use the interactivity to help you find out how she can alter her pouch of marbles and still keep the two pouches balanced.
  
  ### Balancing 2
  
  ##### Stage: 3 Challenge Level:
  
  Meg and Mo still need to hang their marbles so that they balance, but this time the constraints are different. Use the interactivity to experiment and find out what they need to do.
  
  ### Rule of Three
  
  ##### Stage: 3 Challenge Level:
  
  If it takes four men one day to build a wall, how long does it take 60,000 men to build a similar wall?
  
  ### Zin Obelisk
  
  ##### Stage: 3 Challenge Level:
  
  In the ancient city of Atlantis a solid rectangular object called a Zin was built in honour of the goddess Tina. Your task is to determine on which day of the week the obelisk was completed.
  
  ### Ratio or Proportion?
  
  ##### Stage: 2 and 3
  
  An article for teachers which discusses the differences between ratio and proportion, and invites readers to contribute their own thoughts.
  
  ### Points in Pairs
  
  ##### Stage: 4 Challenge Level:
  
  In the diagram the radius length is 10 units, OP is 8 units and OQ is 6 units. If the distance PQ is 5 units what is the distance P'Q' ?
  
  ### Triathlon and Fitness
  
  ##### Stage: 3 Challenge Level:
  
  The triathlon is a physically gruelling challenge. Can you work out which athlete burnt the most calories?
  
  ### Bus Stop
  
  ##### Stage: 4 Challenge Level:
  
  Two buses leave at the same time from two towns Shipton and Veston on the same long road, travelling towards each other. At each mile along the road are milestones. The buses' speeds are constant. . . .
  
  ### Roasting Old Chestnuts 3
  
  ##### Stage: 3 and 4
  
  Mainly for teachers. More mathematics of yesteryear.
  
  ### Oh for the Mathematics of Yesteryear
  
  ##### Stage: 3 Challenge Level:
  
  A garrison of 600 men has just enough bread ... but, with the news that the enemy was planning an attack... How many ounces of bread a day must each man in the garrison be allowed, to hold out 45. . . .
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