Read and download free pdf of CBSE Class 8 Mathematics Cubes And Cube Roots Worksheet Set B. Students and teachers of Class 8 Mathematics can get free printable Worksheets for Class 8 Mathematics Chapter 7 Cubes and Cube Roots in PDF format prepared as per the latest syllabus and examination pattern in your schools. Class 8 students should practice questions and answers given here for Mathematics in Class 8 which will help them to improve your knowledge of all important chapters and its topics. Students should also download free pdf of Class 8 Mathematics Worksheets prepared by school teachers as per the latest NCERT, CBSE, KVS books and syllabus issued this academic year and solve important problems with solutions on daily basis to get more score in school exams and tests
Worksheet for Class 8 Mathematics Chapter 7 Cubes and Cube Roots
Class 8 Mathematics students should refer to the following printable worksheet in Pdf for Chapter 7 Cubes and Cube Roots in Class 8. This test paper with questions and answers for Class 8 will be very useful for exams and help you to score good marks
Class 8 Mathematics Worksheet for Chapter 7 Cubes and Cube Roots
CBSE Class 8 Cubes and Cube Roots Worksheet (2)
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Question. Divide the number 26244 by the smallest number so that the question is a perfect cube, so the smallest number is :
(A) 4
(B) 6
(C) 36
(D) 16
Answer: C
Question. 55 x 55 – 2 x 25 x 55 + 25 x 25/302 = ?
(A) 6
(B) 4
(C) 5
(D) None of these
Answer: D
Question. The volumes of two cubes are in the ratio of 343 : 1331, the ratio of their edges is .
(A) 7: 10
(B) 7:11
(C) 7: 12
(D) None of these
Answer: B
Question. The least number which must be added to 4931 to make it perfect square is :
(A) 110
(B) 120
(C) 130
(D) None
Answer: A
Question. The least number which must be subtracted from 18265 to make it a perfect square is:
(A) 20
(B) 30
(C) 40
(D) 50
Answer: C
Question. √2√2√2√2√2 is equal to
(A) 0
(B) 2
(C) 1
(D) 2 31/32
Answer: D
Question. 65 x 65+ 2 x 65 x 35 + 35 x 35/65 + 35 = ?
(A) 1000
(B) 10
(C) 100
(D) None of these
Answer: C
Question. Value of 3√392 x 3√448 is
(A) 50
(B) 52
(C) 54
(D) 56
Answer: D
Question. The value of √225 is-
(A) 25
(B) 15
(C) 35
(D) 05
Answer: B
Question. The smallest number by which 137592 should be multiply to make it perfect cube.
(A) 1183
(B) 1180
(C) 1181
(D) None of these
Answer: A
Question. (48 - 8)2/40 = ?
(A) 40
(B) 80
(C) 15
(D) 150
Answer: A
Question. By studying the numbers given below, find out the missing numbers.
(1) 2+ (2)2 + (2)2 = (3)2
(i) (4)2 + (5)2 + __2 = (21)2
(A) 20 (B) 6 (C) 7 (D) 24
(ii) (5)2 + __2 + (30)2 = (31)2
Answer: A
Question. 'The greatest six digit number which is perfect square is :
(A) 998004
(B) 998006
(C) 998049
(D) 998001
Answer: D
Question. A gardner plants 17956 trees in such a way that there are as many rows as there are trees in each row. The number of trees in a row are :
(A) 136
(B) 164
(C) 134
(D) 166
Answer: C
Question. (65 - 56)2/32 = ?
(A) 8
(B) 9
(C) 1/9
(D) None of these
Answer: B
Question. (16)2 x (4)2 = ?
(A) 4096
(B) 16360
(C) 25360
(D) None of these
Answer: A
Question. (15/8 x 16)2 = ?
(A) 916
(B) 900
(C) 926
(D) 1966
Answer: B
Question. (16)2 + (12)2/(20)2 = ?
(A) 4
(B) 2
(C) 1
(D) 5
Answer: C
Question. Least perfect square of 6 digits is :
(A) 998000
(B) 998001
(C) 998002
(D) None of these
Answer: B
Question. (65)2 – (64)2 + (1)2 =?
(A) 130
(B) 129
(C) 138
(D) 120
Answer: A
Question. (57)2 – (52)2 = 5 × ?
(A) 109
(B) 108
(C) 5
(D) None of these
Answer: A
Question. (5, 12, 15) and (7, 5, 12)
(A) Both are Pythagorean triplets
(B) None of the both is Pythagorean triplet
(C) First is Pythagorean triplet while second is not
(D) Second is Pythagorean triplet while first is not
Answer: B
Question. The perfect cube nearest to 2750 is :
(A) 2749
(B) 2747
(C) 2744
(D) 2754
Answer: C
Question. If (65)2 – (60)2 = [(55)2 – (50)2 ] × y, then the value of y is-
(A) 23/21
(B) 28/21
(C) 25/21
(D) None of these
Answer: C
Question. A 8 × 6 × 4 cm3 metallic cube is melted. Find the minimum volume of molten metal which should be added to mould it into a cube whose edge is an x, where x is an integer.
(A) 20
(B) 21
(C) 23
(D) 24
Answer: D
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CBSE Class 8 Mathematics Chapter 7 Cubes and Cube Roots Worksheet
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Worksheet for Mathematics CBSE Class 8 Chapter 7 Cubes and Cube Roots
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Chapter 7 Cubes and Cube Roots worksheet Mathematics CBSE Class 8
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Chapter 7 Cubes and Cube Roots CBSE Class 8 Mathematics Worksheet
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Worksheet for CBSE Mathematics Class 8 Chapter 7 Cubes and Cube Roots
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