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      Question

      The circumference of the two circles is 110 cm and 330

      cm respectively. What is the difference between their radii?
      A 25m Correct Answer Incorrect Answer
      B 35m Correct Answer Incorrect Answer
      C 42m Correct Answer Incorrect Answer
      D 30m Correct Answer Incorrect Answer

      Solution

      2p (r1 – r2) = 330 – 110 Β  = 220 Γ—7)/22Γ—2 (r1 – r2) = 35 cm

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