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
20
3
+
19
3
(i)
14856
(ii)
14862
(iii)
14858
(iv)
14860
(v)
14859
Question
2
2.
Find the value of
26
3
+
25
3
(i)
33200
(ii)
33198
(iii)
33201
(iv)
33202
(v)
33203
Question
3
3.
Find the cube root of
1331
(i)
124
(ii)
14
(iii)
11
(iv)
121
(v)
8
Question
4
4.
Find the cube of
28
(i)
784
(ii)
787
(iii)
21952
(iv)
21949
(v)
21955
Question
5
5.
Find the value of
16
3
+
15
3
(i)
7473
(ii)
7470
(iii)
7472
(iv)
7471
(v)
7468
Question
6
6.
Which of the following is a perfect cube?
(i)
1001
(ii)
123
(iii)
732
(iv)
64
(v)
511
Question
7
7.
Which of the following is not a perfect cube?
(i)
512
(ii)
1000
(iii)
125
(iv)
216
(v)
346
Question
8
8.
The smallest number by which 1125 must be multiplied so that the product is a perfect cube is?
(i)
0
(ii)
1
(iii)
3
(iv)
4
(v)
2
Question
9
9.
The smallest number by which 11664 must be divided so that the quotient is a perfect cube is?
(i)
2
(ii)
3
(iii)
0
(iv)
1
(v)
4
Question
10
10.
Find the cube root of
4096
(i)
13
(ii)
259
(iii)
16
(iv)
256
(v)
19
Question
11
11.
Find the cube of
14
(i)
2741
(ii)
2747
(iii)
196
(iv)
2744
(v)
199
Question
12
12.
Find the value of
18
3
−
17
3
(i)
918
(ii)
919
(iii)
921
(iv)
920
(v)
917
Question
13
13.
Which of the following is a perfect cube?
(i)
122
(ii)
217
(iii)
732
(iv)
512
(v)
7
Question
14
14.
Which of the following is not a perfect cube?
(i)
8
(ii)
515
(iii)
1000
(iv)
125
(v)
64
Question
15
15.
The smallest number by which 2916 must be multiplied so that the product is a perfect cube is?
(i)
0
(ii)
2
(iii)
1
(iv)
3
(v)
4
Question
16
16.
The smallest number by which 432 must be divided so that the quotient is a perfect cube is?
(i)
0
(ii)
2
(iii)
3
(iv)
1
(v)
4
Assignment Key
1) (v)
2) (iii)
3) (iii)
4) (iii)
5) (iv)
6) (iv)
7) (v)
8) (iii)
9) (i)
10) (iii)
11) (iv)
12) (ii)
13) (iv)
14) (ii)
15) (ii)
16) (ii)
