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Class 8th Maths || Menu
  • Important
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  • Rational Numbers
    • Ex 1.1
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  • Linear Equations in One Variable
    • Ex 2.1
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    • Ex 7.1
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  • Comparing Quantities
    • Ex 8.1
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  • Algebraic Expressions and Identities
    • Ex 9.1
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  • Visualising Solid Shapes
    • Ex 10.1
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  • Mensuration
    • Ex 11.1
    • Ex 11.2
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  • Exponents and Powers
    • Ex 12.1
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  • Direct and Inverse Proportions
    • Ex 13.1
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  • Factorisation
    • Ex 14.1
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  • Introduction to Graphs
    • Ex 15.1
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  • Playing with Numbers
    • Ex 16.1
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Cubes and Cube Roots, Chapter 7 Class 8 Maths MCQs

1. Which of the following is not a perfect cube ?

(a) 1

(b) 9

(c) 8

(d) 27
 
 
 
 

Question 1 of 20

2. The cube of 4 is _______________ .

(a) 12

(b) 8

(c) 4

(d) 64
 
 
 
 

Question 2 of 20

3. The cube of an even number is always ____________ .

(a) odd number

(b) even number

(c) prime number

(d) none of these
 
 
 
 

Question 3 of 20

4. The cube of an odd number is always __________ .

(a) odd number

(b) even number

(c) prime number

(d) none of these
 
 
 
 

Question 4 of 20

5. Each prime factor appears _________ times in its cube?

(a) 2

(b) 3

(c) 1

(d) 4
 
 
 
 

Question 5 of 20

6. By which smallest natural number 392 must be multiplied so as to make the product a perfect cube ?

(a) 2

(b) 14

(c) 7

(d) 49
 
 
 
 

Question 6 of 20

7. The smallest natural number by which 704 must be divided to obtain a perfect cube is

(a) 22

(b) 12

(c) 11

(d) 13
 
 
 
 

Question 7 of 20

8. Which of the following is not a perfect cube ?

(a) 216

(b) 343

(c) 125

(d) 108
 
 
 
 

Question 8 of 20

9. What will be the unit digit of the cube of a number ending with 2 ?

(a) 8

(b) 4

(c) 2

(d) 6
 
 
 
 

Question 9 of 20

10. A cuboid has dimensions 5cm , 2cm, 5cm .How many such cuboid will be needed to form a cube ?

(a) 20

(b) 10

(c) 5

(d) 2
 
 
 
 

Question 10 of 20

11. Which of the following is a perfect cube ?

(a) 125

(b) 135

(c) 145

(d) 115
 
 
 
 

Question 11 of 20

12. What is the volume of a cube whose edge is 2cm ?

(a) 8

(b) 6

(c) 10

(d) 4
 
 
 
 

Question 12 of 20

13. The cube root of 512 is ________ .

(a) 8

(b) 32

(c) 16

(d) 2
 
 
 
 

Question 13 of 20

14. What will be the unit digit of the cube root of a number ends with 8?

(a) 2

(b) 8

(c) 4

(d) 6
 
 
 
 

Question 14 of 20

15. What will be the unit digit of the cube root of a number ends with 2?

(a) 2

(b) 8

(c) 4

(d) 6
 
 
 
 

Question 15 of 20

16. 9 is the cube root of __________ .

(a) 343

(b) 729

(c) 629

(d) 81
 
 
 
 

Question 16 of 20

17. The number of digits in the cube root of a 6-digit number is _______ .

(a) 3

(b) 2

(c) 4

(d) 6
 
 
 
 

Question 17 of 20

18. How many digits will be there in the cube root of 46656 ?

(a) 2

(b) 1

(c) 3

(d) 4
 
 
 
 

Question 18 of 20

19. How many zeros will be there in the cube root of 27000?

(a) 3

(b) 0

(c) 1

(d) 2
 
 
 
 

Question 19 of 20

20. How many zeros will be there in the cube root of 800?

(a) 3

(b) 0

(c) 1

(d) cube root does not exist
 
 
 
 

Question 20 of 20

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