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      Question

      If the volume of a sphere is divided by its surface

      area, we obtain 64 cm. What will be the radius of the sphere?
      A 192 cm Correct Answer Incorrect Answer
      B 181cm Correct Answer Incorrect Answer
      C 227cm Correct Answer Incorrect Answer
      D 242cm Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      Let the radius of the sphere be R = 64 cm. ⇒     r = 64 cm ⇒    r = 192 cm ∴   R = 3 × 64 = 192 cm .

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