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
19
3
+
18
3
(i)
12688
(ii)
12694
(iii)
12692
(iv)
12690
(v)
12691
Question
2
2.
Find the value of
17
3
+
16
3
(i)
9012
(ii)
9007
(iii)
9009
(iv)
9010
(v)
9008
Question
3
3.
Find the cube root of
6859
(i)
364
(ii)
361
(iii)
19
(iv)
16
(v)
22
Question
4
4.
Find the cube of
21
(i)
9261
(ii)
9258
(iii)
9264
(iv)
441
(v)
444
Question
5
5.
Find the value of
25
3
+
24
3
(i)
29450
(ii)
29451
(iii)
29449
(iv)
29448
(v)
29447
Question
6
6.
Which of the following is a perfect cube?
(i)
27
(ii)
344
(iii)
509
(iv)
731
(v)
7
Question
7
7.
Which of the following is not a perfect cube?
(i)
512
(ii)
125
(iii)
30
(iv)
64
(v)
1000
Question
8
8.
The smallest number by which 243 must be multiplied so that the product is a perfect cube is?
(i)
3
(ii)
1
(iii)
4
(iv)
2
(v)
0
Question
9
9.
The smallest number by which 1024 must be divided so that the quotient is a perfect cube is?
(i)
2
(ii)
0
(iii)
3
(iv)
1
(v)
4
Question
10
10.
Find the cube root of
9261
(i)
18
(ii)
21
(iii)
441
(iv)
444
(v)
24
Question
11
11.
Find the cube of
21
(i)
9258
(ii)
444
(iii)
9261
(iv)
9264
(v)
441
Question
12
12.
Find the value of
8
3
−
7
3
(i)
171
(ii)
170
(iii)
167
(iv)
169
(v)
168
Question
13
13.
Which of the following is a perfect cube?
(i)
9
(ii)
26
(iii)
1000
(iv)
727
(v)
128
Question
14
14.
Which of the following is not a perfect cube?
(i)
216
(ii)
125
(iii)
515
(iv)
343
(v)
64
Question
15
15.
The smallest number by which 256 must be multiplied so that the product is a perfect cube is?
(i)
0
(ii)
3
(iii)
2
(iv)
4
(v)
1
Question
16
16.
The smallest number by which 17496 must be divided so that the quotient is a perfect cube is?
(i)
0
(ii)
1
(iii)
2
(iv)
3
(v)
4
Assignment Key
1) (v)
2) (iii)
3) (iii)
4) (i)
5) (iii)
6) (i)
7) (iii)
8) (i)
9) (i)
10) (ii)
11) (iii)
12) (iv)
13) (iii)
14) (iii)
15) (iii)
16) (iv)
