MCQ Questions | Class 8 Maths Chapter 7 | Cubes and Cube Roots with Answers

MCQ | Cubes and Cube Roots Class 8

Check the below NCERT MCQ Questions for Class 8 Maths Chapter 7 Cubes and Cube Roots with Answers Pdf free download. MCQ Questions for Class 8 Maths with Answers were prepared based on the latest exam pattern. We have Provided Cubes and Cube Roots Class 8 Maths MCQs Questions with Answers to help students understand the concept very well.

Objective Question | NCERT Maths Class 8

NCERT Solutions Class 8 Maths
Book:	National Council of Educational Research and Training (NCERT)
Board:	Central Board of Secondary Education (CBSE)
Class:	8th
Subject:	Maths
Chapter:	7 Part-3
Chapters Name:	Cubes and Cube Roots
Medium:	English

Ncert Solutions for Class 8 Maths | Objective Type Questions

You can refer to NCERT Solutions for Class 8 Maths Chapter 7 Cubes and Cube Roots to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.

Cubes and Cube Roots | Class 8 Maths | NCERT Solutions

Q1.	CBSE Class 8 Maths Mcq Questions Find the smallest number by which the number 256 must be divided to obtain a perfect cube.
	A. 2
	B. 4
	C. 8
	D. 16.

Ans: 4
Hint:
256 = 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2
= 2³ × 2³ × 2 × 2.

Q2.	CBSE Class 8 Maths Cubes and Cube Roots Mcq Questions Find the smallest number by which the number 36 must be multiphed to obtain a perfect cube.
	A. 6
	B. 2
	C. 3
	D. 4.

Ans: 6
Hint:
36 = 2 × 2 × 3 × 3.

Q3.	Class 8 Maths Mcq Chapter 7 Find the smallest number by which the number 1296 must be divided to obtain a perfect cube.
	A. 6
	B. 2
	C. 4
	D. 3.

Ans: 6
Hint:
1296 =2 × 2 × 2 × 2 × 3 × 3 × 3 × 3
= 2³ × 2 × 3³ × 3.

Q4.	Class 8 Maths Mcq online test Find the smallest number by which the number 392 must be multiplied to obtain a perfect cube.
	A. 3
	B. 5
	C. 7
	D. 6.

Ans: 7
Hint:
392 = 2 × 2 × 2 × 7 × 7 = 2³ × 7 × 7.

Q5.	Class 8 Maths Mcq with answers Find the smallest number by which the number 2401 must be divided to obtain a perfect cube.
	A. 7
	B. 6
	C. 5
	D. 9.

Ans: 7
Hint:
2401 = 7 × 7 × 7 × 7 = 7³ × 7.

Q6.	Learn Cbse Class 8 Maths Mcq Find the smallest number by which the number 121 must be multiplied to obtain a perfect cube.
	A. 7
	B. 9
	C. 11
	D. 5.

Ans: 11
Hint:
121 = 11 × 11.

Q7.	Mcq Class 8 Maths Chapter 7 Find the smallest number by which the number 88 must be divided to obtain a perfect cube.
	A. 11
	B. 5
	C. 7
	D. 9.

Ans: 11
Hint:
88 = 2 × 2 × 2 × 11 = 2³ × 11.

Q8.	Mcq for Class 8 Maths Chapter 7 The volume of a cube is 64 cm³. The edge of the cube is
	A. 4 cm
	B. 8 cm
	C. 16 cm
	D. 6 cm.

Ans: 4 cm
Hint:
Edge = \(\sqrt[3]{64}\) = \(\sqrt[3]{2 × 2 × 2 × 2 × 2 × 2}\)
= \(\sqrt[3]{2^3×2^3}\) = 2 × 2 = 4.

Q9.	Mcq Questions for Class 8 Maths with answers pdf Chapter 7 Apala makes a cuboid of plasticine of sides 5 cm, 4 cm, 2 cm. How many such cuboids will be needed to form a cube ?
	A. 20
	B. 25
	C. 10
	D. 16.

Ans: 25
Hint:
Volume = 5 × 4 × 2 = 5 × 2 × 2 × 2
= 5 × 2³.

Q10.	Mcq Questions for Class 8 Maths with answers pdf download Which of the following is false ?
	A. Cube of any odd number is odd
	B. A perfect cube does not end with two zeroes
	C. The cube of a single digit number may be a single digit number
	D. There is no perfect cube which ends with 8.