Railways Sample Paper RRBs Assistant Loco Pilot and Technician CBT STAGE-I Sample Paper-29

  • question_answer
    A toy is in the form of a right circular cone mounted on a hemisphere. If the radius of hemisphere is 3.5 cm and the total height of the toy is 9.5 cm. The volume of toy is

    A)  \[164\,\,c{{m}^{3}}\] 

    B)  \[166.83\,\,c{{m}^{3}}\]

    C)  \[169\,\,c{{m}^{3}}\] 

    D)  \[172.83\,\,c{{m}^{3}}\]

    Correct Answer: B

    Solution :

    Volume of toy = Volume of cone + Volume of hemisphere =\[\frac{1}{3}\pi {{(3.5)}^{2}}\times 6+\frac{2}{3}\pi {{(3.5)}^{3}}\] =\[166.83\,\,c{{m}^{3}}\]


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