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Question 45

A pump moves water at 6 litres per minute for 9 minutes. How much water does it move?

  1. 1.5 litres
  2. 15 litres
  3. 54 litresBonne réponse
  4. 63 litres

Explication

Multiplying 6 litres per minute by 9 minutes cancels the time unit and gives 54 litres. Dividing 9 by 6 would produce a time-per-volume quantity rather than the requested total volume.

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Question 45: A pump moves water at 6 litres per minute for 9 minutes.… · Ratios and Proportions · Questena