CBSE Board Practice

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CBSE Grade VIII - Cubes and Cube Roots
Question 1
1.
The smallest number by which 1944 must be multiplied so that the product is a perfect cube is?
  • 4
  • 3
  • 2
  • 0
  • 1
Question 2
2.
    • Find the
    • cube root
    • of
    • (
      -125
      27
      		 )
  • (
    -5
    3
    		 )
  • -1
  • -5
  • (
    -7
    3
    		 )
Question 3
3.
    • Find the cube of
    • 25
  • 15628
  • 15622
  • 625
  • 15625
  • 628
Question 4
4.
    • Find the cube root of
    • 24389
  • 26
  • 841
  • 844
  • 32
  • 29
Question 5
5.
    • Find the
    • cube root
    • of
    • 8
  • 1
  • 5
  • 3
  • 2
  • 0
Question 6
6.
    • Find the value of
    • 29 3
       
    • +
    • 28 3
       
  • 46342
  • 46340
  • 46338
  • 46343
  • 46341
Question 7
7.
Which of the following is a perfect cube?
  • 728
  • 61
  • 1001
  • 27
  • 11
Question 8
8.
Which of the following is not a perfect cube?
  • 8
  • 512
  • 1000
  • 125
  • 67
Question 9
9.
    • Find the value of
    • 15 3
       
    • −
    • 14 3
       
  • 634
  • 629
  • 630
  • 631
  • 632
Question 10
10.
The smallest number by which 432 must be divided so that the quotient is a perfect cube is?
  • 1
  • 4
  • 2
  • 0
  • 3