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8th Class Mathematics Mensuration Question Bank Mensuration

  • question_answer
    If the radius of the base of a right circular cylinder is reduced by 50%, keeping the same height, what is the ratio of the volume of the reduced cylinder to that of the original?

    A) 1:9                              

    B) 1:8

    C) 1:4                  

    D) 1:2

    Correct Answer: C

    Solution :

    If r be the radius of the original, then \[216c{{m}^{2}}\] is the radius of the reduced cylinder. \[\frac{100\sqrt{2}}{\pi }cm\] Ratio is \[\frac{50\sqrt{2}}{\pi }cm\]           


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