8th Class Mathematics Cubes and Cube Roots Question Bank Cubes and Cube Roots

  • question_answer
    The volume of liquid in a measuring jar is\[200\text{ }c{{m}^{3}}\]. A cube of side \[7\text{ }cm\] is immersed in the liquid. What is the reading on the measuring jar?

    A)  \[800\,c{{m}^{3}}\]                       

    B)                         \[543\,c{{m}^{3}}\]                       

    C)                         \[643\,c{{m}^{3}}\]                       

    D)                         \[843\text{ }c{{m}^{3}}\]

    Correct Answer: B

    Solution :

    Volume of the liquid in the jar\[=200\text{ }c{{m}^{3}}\]. Side of the immersed cube = 7 cm \[\Rightarrow \]Its volume \[=73\text{ }c{{m}^{3}}\text{=}\,343\text{ }c{{m}^{3}}\] Therefore, the reading on the measuring jar is                 \[200+343\text{ }c{{m}^{3}}=543\text{ }c{{m}^{3}}\]


You need to login to perform this action.
You will be redirected in 3 sec spinner