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      Question

      If the ratio of the heights of two cones is 1: 4 and the

      diameters are in ratio 4: 5 then what is the ratio of their volumes?
      A 4: 25 Correct Answer Incorrect Answer
      B 13: 25 Correct Answer Incorrect Answer
      C 7: 17 Correct Answer Incorrect Answer
      D 5: 9 Correct Answer Incorrect Answer

      Solution

      Given- h1=1 h2=4 r1=4/2=2 r2=5/2=2.5 The ratio of their volumes – =4:6.25×4 =100:625 =4:25

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