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9th Class Mathematics Surface Areas and Volumes Question Bank Surface Areas and Volumes

  • question_answer
    If 10 cubic metres of clay is uniformly spread on a land of area 10 ares, what is the rise in the level of the ground?

    A)  1 cm                          

    B)    10 cm            

    C)                            100 cm                      

    D)    1000 cm        

    Correct Answer: A

    Solution :

    Volume of clay \[=10\,{{m}^{3}}\] Area of land \[=10\,ares\] \[=10\times 10\,{{m}^{2}}=1000\,{{m}^{2}}\] \[\therefore \]Rise in the level of ground \[\frac{10}{1000}=0.01\,m=1\,cm\]


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