2. Questions Bank
  3. 8th Class
  4. Mathematics
  5. Cubes and Cube Roots

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

  • question_answer
    The smallest number by which 2560 must be multiplied so that the product will be a perfect cube.

    A)  35                               

    B)  2.5   

    C)  8                                

    D)  5

    Correct Answer: B

    Solution :

    (b): \[2560\div 4=640\] \[640\times 10=6400\] (perfect cube) \[\Rightarrow 2560\times 10/4=6400\] \[\therefore \frac{10}{4}=2.5\]               


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