Class 8 Mathematics MCQ Cubes And Cube Roots

Question : How many digits will be there in the cube root of 46656?
(a) 2
(b) 1
(c) 3
(d) 4

Question : How many digits will be there in the cube root of 512?
(a) 1
(b) 2
(c) 3
(d) 4

Question : What will be the unit digit of $\sqrt[3]{15625}$?
(a) 5
(b) 0
(c) 3
(d) 4

Question : How many zeros will be there in the cube root of 27000?
(a) 3
(b) 0
(c) 1
(d) 2

Question : 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 : If 7³=343 , then $\sqrt[3]{343}$ = _________ .
(a) 3
(b) 7
(c) 13
(d) 9

Question : If 8³ = 512 , then $\sqrt[3]{512}$ = __________ .
(a) 3
(b) 7
(c) 13
(d) 9

Question : What will be the unit digit of $\sqrt[3]{216}$?
(a) 3
(b) 6
(c) 4
(d) 2

Question : 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 : Which of the following numbers is a cube number ?
(a) 1000
(b) 400
(c) 100
(d) 600.

Question : The prime factorisation of 64 is:
(a) 2 x 2 x 2
(b) 4 x 4 x 4
(c) 8 x 8 x 8
(d) None of the above

Question : The cube of an even natural number is
(a) odd
(b) even
(c) may be even, may be odd
(d) prime number

Question : What is the cube of double of ‘a’?
(a) 16a³
(b) 2a
(c) 8a³
(d) 4a²

Question : 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 : Which of the following numbers is not a perfect cube ?
(a) 1331
(b) 512
(c) 343
(d) 100.

Question : By what number should 81 be divided to get a perfect cube?
(a) 3
(b) 6
(c) 7
(d) 9

Question : The ones digit of the cube of the number 512 is
(a) 2
(b) 4
(c) 6
(d) 8

Question : Each prime factor appears _ times in its cube?
(a) 2
(b) 3
(c) 1
(d) 4

Question : If volume of cube is 4913cm³ then length of side of cube is
(a) 16 cm
(b) 17 cm
(c) 18 cm
(d) 19 cm

Question : The cube of an odd natural number is
(a) even
(b) odd
(c) may be even, may be odd
(d) prime number.

Question : By what number should we divide 135 to get a perfect cube?
(a) 3
(b) 5
(c) 7
(d) 9

Question : The volume of a cubical box is 343 cm³ which of the following is the side of the box?
(a) 5 cm
(b) 4 cm
(c) 6 cm
(d) 7 cm

Question : The expansion of a³ is _.
(a) 3 × a
(b) a + a + a
(c) 3 × 3 × 3
(d) a × a × a

Question : The value of 5³ is __.
(a) 125
(b) 15
(c) 10
(d) 75

Question : The one’s digit of the cube of the number 111 is
(a) 1
(b) 2
(c) 3
(d) 9.

Question : What should be divided by 53240 to make it a perfect cube?
(a) 5
(b) 10
(c) 15
(d) 20

Question : Find the smallest number by which the number 72 must be multiplied to obtained a perfect cube.
(a) 2
(b) 3
(c) 4
(d) 8

Question : The numbers 1, 8, 27… are __.
(a) negative numbers
(b) cube numbers
(c) square numbers
(d) none of these

Question : Ones place digit in the cube of 5832 is __.
(a) 5
(b) 7
(c) 2
(d) 8

Question : The one’s digit of the cube of the number 123 is
(a) 3
(b) 6
(c) 9
(d) 7.

Question : Cube root of 15625 is:
(a) 5
(b) 15
(c) 25
(d) 35

Question : Which of the following is a perfect cube?
(a) 10,000
(b) 243
(c) 343
(d) 270000

Question : Express 6³ as the sum of odd numbers.
(a) 31 + 33 + 35 + 37 + 39 + 41 + 43
(b) 31 + 33 + 35 + 37 + 39 + 41
(c) 31 + 33 + 35 + 37 + 39 + 41 + 43 + 45
(d) none of these

Question : The cube root of the 216 × (−32) × 54 is __
(a) -36
(b) -72
(c) -48
(d) none of these

Question : The one’s digit of the cube of the number 326 is
(a) 2
(b) 3
(c) 6
(d) 4.

Question : The cube of an odd number is always __ .
(a) odd number
(b) even number
(c) prime number
(d) none of these

Question : Find the cube root of 0.001331.
(a) 0.111
(b) 0.101
(c) 0.11
(d) none of these

Question :How many digits will be there in the cube root of 46656?
(a) 2
(b) 1
(c) 3
(d) 4

Question :Ones digit of cube of a number depends on the ________ of the number.
(a) tens digit
(b) ones digit
(c) hundred digit
(d) none of these

Question :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 :The symbol for cube root is __________.
(a) √3
(b) ∛
(c) 2√3
(d) 3√3

Question :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 :The numbers 1, 8, 27… are ______.
(a) negative numbers
(b) cube numbers
(c) square numbers
(d) none of these

Question :If volume of cube is 4913cm³ then length of side of cube is
(a) 16 cm
(b) 17 cm
(c) 18 cm
(d) 19 cm

Question :The square of a natural number subtracts from its cube comes 100. The number is __________.
(a) 2
(b) 3
(c) 5
(d) 1

Question :The value of 5³ is __________.
(a) 125
(b) 15
(c) 10
(d) 75

Question :If (2744)^{$\frac { 1 }{ 3 }$} = 2p+2, then the value of P is
(a) 3
(b) 6
(c) 2
(d) 8

Question :Ones place digit in the cube of 5832 is ______.
(a) 5
(b) 7
(c) 2
(d) 8

Question :Find the cube root of 0.001331.
(a) 0.111
(b) 0.101
(c) 0.11
(d) none of these

Question :If (504 + p) is a perfect cube number, whose cube root is p, then p = ______.
(a) 6
(b) 4
(c) 2
(d) 8

Question :The cube root of the 216 × (−32) × 54 is ________
(a) -36
(b) -72
(c) -48
(d) none of these

Question :The cube of an odd number is always __________.
(a) odd number
(b) even number
(c) prime number
(d) none of these

Question :Express 6³ as the sum of odd numbers.
(a) 31 + 33 + 35 + 37 + 39 + 41 + 43
(b) 31 + 33 + 35 + 37 + 39 + 41
(c) 31 + 33 + 35 + 37 + 39 + 41 + 43 + 45
(d) none of these

Question :The cube of 23 is ___________
(a) 2304
(b) 23
(c) 12167
(d) 529

Question :What will be the unit digit of the cube of a number ending with 6?
(a) 4
(b) 6
(c) 2
(d) 8

Question :The expansion of a³ is ___________.
(a) 3 × a
(b) a + a + a
(c) 3 × 3 × 3
(d) a × a × a

Question :A natural number is said to be a perfect cube, if it is the cube of some _________.
(a) natural number
(b) square number
(c) cube number
(d) cuboid number

Question :Each prime factor appears _________ times in its cube?
(a) 2
(b) 3
(c) 1
(d) 4

Question :What is the cube of double of ‘a’?
(a) 16a³
(b) 2a
(c) 8a³
(d) 4a²

Question : The one’s digit of the cube of 53 is:
(a) 9
(b) 3
(c) 7
(d) 1

Question : The prime factorisation of 64 is
A. 2 x 2 x 2
(b) 4 x 4 x 4
(c) 8 x 8 x 8
(d) None of the above

Question : Which of the following is not a perfect cube?
(a) 216
(b) 1000
(c) 243
(d) 1331

Question : By what number should 81 be divided to get a perfect cube?
(a) 3
(b) 6
(c) 7
(d) 9

Question : By what number should we divide 135 to get a perfect cube?
(a) 3
(b) 5
(c) 7
(d) 9

Question : Cube root of 512 is:
(a) 4
(b) 6
(c) 8
(d) 12

Question : What should be divided by 53240 to make it a perfect cube?
(a) 5
(b) 10
(c) 15
(d) 20

Question : The value of 4³√1000 is:
(a) 400
(b) 40
(c) 10
(d) 4

Question : A perfect cube of a number having 0 at its unit place, ends with _____ zeros.
(a) 1
(b) 2
(c) 3
(d) 4

Question : Cube root of 15625 is:
(a) 5
(b) 15
(c) 25
(d) 35

Question : Which of the following is a perfect cube?
(a)125
(b) 36
(c) 75
(d) 100

Question : What is the cube of 2a?
(a) 2a³
(b) 4a³
(c) 8a³
(d) 16a³

Question : 1. The cube root of 13824 is __________.
(a) 36
(b) 25
(c) 24
(d) 16

Question : Which of these numbers is not a cube number?
(a) 10000
(b) 343
(c) 64
(d) 729

Question : When the square of a number is subtracted from the cube of the same number, it becomes 100. Find the number.
(a)1
(b) 2
(c) 4
(d) 5

Question : Which is the smallest natural number by which 243 must be multiplied to make the product a perfect cube?
(a) 3
(b) 9
(c) 8
(d) 7

Question : The one’s digit of the cube of the number 111 is:
(a) 1
(b) 2
(c) 3
(d) 9

Question : The cube of 23 is:
(a) 2304
(b) 12167
(c) 529
(d) 23

Question : The one’s digit of the cube of the number 242 is
(a) 2
(b) 4
(c) 6
(d) 8

Question : Find the smallest number by which the number 200 must be multiplied to obtain a perfect cube.
(a) 2
(b) 10
(c) 5
(d) 100