CBSE Class 8 Mathematics Cubes and Cube Roots MCQs Set A

CBSE Class 8 Mathematics Cubes and Cube Roots MCQs Set A with answers available in Pdf for free download. The MCQ Questions for Class 8 Cubes and Cube Roots with answers have been prepared as per the latest syllabus, NCERT books and examination pattern suggested in Standard 8 by CBSE, NCERT and KVS. Multiple Choice Questions are an important part of Term 1 and Term 2 exams for Grade 8 Cubes and Cube Roots and if practiced properly can help you to get higher marks. Refer to more Chapter-wise MCQs for NCERT Class 8 Cubes and Cube Roots and also download more latest study material for all subjects

Cubes and Cube Roots Class 8 MCQ

Class 8 Cubes and Cube Roots students should refer to the following multiple-choice questions with answers for Cubes and Cube Roots in standard 8. These MCQ questions with answers for Grade 8 Cubes and Cube Roots will come in exams and help you to score good marks

Class 8 Cubes and Cube Roots MCQ Questions with Answers

 CHAPTER –7. CUBES & CUBE ROOTS.

Put a tick mark(√) on the correct answer :

Q1.Which of the following numbers must be subtracted from 345 to get a perfect cube ?
(i) 121 (ii) 131 (iii) 2 (iv) 24

Q2.Which of the following numbers is a perfect cube ?
(i) 343 (ii) 443 (iii) 543 (iv) 643

Q3.Which of the following numbers must be multiplied to 392 to get a perfect cube ?
(i) 2 (ii) 3 (iii4 (iv) 7

Q4. By which of the following numbers 10648 must be divided to get a perfect cube ?
(i) 2 (ii) 4 (iii) 5 (iv) 7

Q5.What is the volume of a cube whose each side is 4cm ?
(i) 24cm3 (ii) 48 cm3 (iii) 64 cm3 (iv) 125 cm3
 


More Questions...........................

 

Question: The value of 3√343 X 3√−64 is 

  • a) –28
  • b) –18
  • c) 28
  • d) 18

Answer: –28


Question: The length of each side of the cubical box is 2.4 m. Its volume is

  • a) 13.824 cu m
  • b) 13.824 cu cm
  • c) 13.824 cm2
  • d) None of these

Answer: 13.824 cu m


Question: The cube of a number is 8 times the cube of another number. If the sum of the cubes of numbers is 243, the difference of the numbers is

  • a) 3
  • b) 6
  • c) 4
  • d) none

Answer: 3


Question: The square of a natural number subtracted from its cube is 48. The number is

  • a) 4
  • b) 6
  • c) 5
  • d) 8

Answer: 4


Question: Which of the following numbers are perfect cubes?

  • a) 343
  • b) 5324
  • c) 108
  • d) 243

Answer: 343


Question: Which of the following are the cubes of even natural numbers?

  • a) 13824
  • b) 3375
  • c) 729
  • d) 1331

Answer: 13824


Question: Which of the following are the cubes of odd natural numbers?

  • a) 6859
  • b) 32768
  • c) 4096
  • d) 1728

Answer: 6859


Question: The cube root of 0.001728 is

  • a) 0.12
  • b) 12
  • c) 1.2
  • d) none

Answer: 0.12


Question: Choose the correct statement

  • a) All the above
  • b) Cubes of even natural numbers are even
  • c) Cubes of negative integers are negative
  • d) Cubes of odd natural numbers are odd

Answer: All the above


Question: If 72K is a perfect cube, then the value of K is

  • a) 3
  • b) 1
  • c) 2
  • d) 4

Answer: 3

 

Question:

The cube root of 272 is

  • a) 9
  • b) 27
  • c) 3
  • d) none

Answer: 9


Question: The cube of 0.9 is

  • a) 0.729
  • b) none
  • c) 72.9
  • d) 7.29

Answer: 0.729


Question: The number which is not a perfect cube among the following is

  • a) 243
  • b) 1331
  • c) 216
  • d) 512

Answer: 243


Question: The smallest number by which 2560 must be multiplied so that the product is a perfect cube is

  • a) 25
  • b) 15
  • c) 5
  • d) 10

Answer: 25


Question: The smallest number by which 8788 must be divided so that the quotient is a perfect cube is

  • a) 4
  • b) 16
  • c) 12
  • d) 32

Answer: 4


Question: The cube root of 1.331 is

  • a) 1.1
  • b) 0.011
  • c) 0.11
  • d) 11

Answer: 1.1


Question: Two cubes have volume in the ratio 1 : 27. The ratio of the area of the face of one to that of the other is

  • a) 1 : 9
  • b) 1 : 3
  • c) 1 : 6
  • d) 1 : 18

Answer: 1 : 9


Question: By what least number must 21600 be multiplied to make it a perfect cube?

  • a) 10
  • b) 60
  • c) 6
  • d) 30

Answer: 10


Question: The smallest number by which 392 must be multiplied so that the product is a perfect cube is

  • a) 7
  • b) 3
  • c) 9
  • d) 5

Answer: 7


Question: How many small cubes with edges of 10 cm can be just accommodated in a cubical box of 1 m edge?

  • a) 1000
  • b) 10
  • c) 100
  • d) 10000

Answer: 1000

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