EduSahara™ Assignment
Name : Cubes and Cube Roots
Chapter : Cubes and Cube Roots
Grade : CBSE Grade VIII
License : Non Commercial Use
Question
1
1.
Find the value of
15
3
+
14
3
(i)
6120
(ii)
6119
(iii)
6122
(iv)
6117
(v)
6118
Question
2
2.
Find the value of
10
3
+
9
3
(i)
1732
(ii)
1728
(iii)
1730
(iv)
1729
(v)
1726
Question
3
3.
Find the cube root of
24389
(i)
26
(ii)
29
(iii)
844
(iv)
32
(v)
841
Question
4
4.
Find the cube of
24
(i)
13827
(ii)
576
(iii)
579
(iv)
13824
(v)
13821
Question
5
5.
Find the value of
14
3
+
13
3
(i)
4941
(ii)
4940
(iii)
4942
(iv)
4938
(v)
4943
Question
6
6.
Which of the following is a perfect cube?
(i)
514
(ii)
217
(iii)
343
(iv)
122
(v)
999
Question
7
7.
Which of the following is not a perfect cube?
(i)
125
(ii)
216
(iii)
346
(iv)
729
(v)
64
Question
8
8.
The smallest number by which 2048 must be multiplied so that the product is a perfect cube is?
(i)
0
(ii)
4
(iii)
2
(iv)
1
(v)
3
Question
9
9.
The smallest number by which 432 must be divided so that the quotient is a perfect cube is?
(i)
0
(ii)
3
(iii)
4
(iv)
2
(v)
1
Question
10
10.
Find the cube root of
2744
(i)
199
(ii)
14
(iii)
196
(iv)
17
(v)
11
Question
11
11.
Find the cube of
16
(i)
4099
(ii)
4096
(iii)
4093
(iv)
256
(v)
259
Question
12
12.
Find the value of
26
3
−
25
3
(i)
1949
(ii)
1950
(iii)
1951
(iv)
1954
(v)
1952
Question
13
13.
Which of the following is a perfect cube?
(i)
215
(ii)
731
(iii)
62
(iv)
1000
(v)
28
Question
14
14.
Which of the following is not a perfect cube?
(i)
732
(ii)
125
(iii)
216
(iv)
8
(v)
343
Question
15
15.
The smallest number by which 2048 must be multiplied so that the product is a perfect cube is?
(i)
2
(ii)
4
(iii)
1
(iv)
0
(v)
3
Question
16
16.
The smallest number by which 128 must be divided so that the quotient is a perfect cube is?
(i)
0
(ii)
3
(iii)
1
(iv)
4
(v)
2
Assignment Key
1) (ii)
2) (iv)
3) (ii)
4) (iv)
5) (i)
6) (iii)
7) (iii)
8) (iii)
9) (iv)
10) (ii)
11) (ii)
12) (iii)
13) (iv)
14) (i)
15) (i)
16) (v)
