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      Question

      The circumference of the two circles is 120 cm and 428

      cm respectively. What is the difference between their radii?
      A 49cm Correct Answer Incorrect Answer
      B 36cm Correct Answer Incorrect Answer
      C 22cm Correct Answer Incorrect Answer
      D 12cm Correct Answer Incorrect Answer

      Solution

      Given, 2p (r1 – r2) = 428 – 120 2p (r1 – r2) = 308 Β  (r1 – r2) =308/2Γ—22/7 (r1 – r2) =49cm.

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