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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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