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​Q9: Question – Paper 3 – November 2018
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Question
9) A motor racing circuit consists of
  • two parallel straight sections,
  • each of length 0.75 km a semicircle of diameter 0.9 km
  • three equal, smaller semicircles.
The length of a motor race must be greater than 305 km

What is the lowest number of full laps needed at this circuit?
You must show your working.
[5 marks]