CBSE  /  Class 8  /  Maths  /  Cubes and Cube Roots

  • 1. 
    Find the smallest number by which the number 100 must be multiplied to obtain a perfect cube.

  • 5
  • 2
  • 4
  • 10.

  • 2. 
    Find the smallest number by which the number 200 must be multiplied to obtain a perfect cube.

  • 2
  • 10
  • 5
  • 100.

  • 3. 
    Find the smallest number by which the number 625 must be divided to obtain a perfect cube.

  • 3
  • 5
  • 25
  • 125.

  • 4. 
    Find the smallest number by which the number 36 must be multiphed to obtain a perfect cube.

  • 6
  • 2
  • 3
  • 4.

  • 5. 
    Find the smallest number by which the number 392 must be multiplied to obtain a perfect cube.

  • 3
  • 5
  • 7
  • 6.

  • 6. 
    Find the smallest number by which the number 2401 must be divided to obtain a perfect cube.

  • 7
  • 6
  • 5
  • 9.

  • 7. 
    Find the smallest number by which the number 121 must be multiplied to obtain a perfect cube.

  • 7
  • 9
  • 11
  • 5.

  • 8. 
    Find the smallest number by which the number 88 must be divided to obtain a perfect cube.

  • 11
  • 5
  • 7
  • 9.

  • 9. 
    Which of the following is false?

  • Cube of any odd number is odd
  • A perfect cube does not end with two zeroes
  • The cube of a single digit number may be a single digit number
  • There is no perfect cube which ends with 8.

  • 10. 
    Which of the following numbers is not a cube number?

  • 10000
  • 3125
  • 64
  • 729
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