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8th Class Mathematics Mensuration Question Bank Mensuration

  • question_answer
    The radii of two cylinders are in the ratio of 2 : 3 and their heights in ratio of 5 : 3, their volumes will be:

    A) 4:9                              

    B) 27:20

    C) 20:27          

    D) 9:4              

    Correct Answer: C

    Solution :

    Let the radii of first and second cylinder be 2x and 3x; and let their heights be 5y and 3y, respectively. \[=2(l+b)\]                              \[=\sqrt{{{l}^{2}}+{{b}^{2}}}\] \[a={{a}^{2}}\]      


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