CBSE Class 8 Maths Cubes and Cube Roots Quiz 5

1. The number of zeroes at the end of the cube of the number 20 is

A

1

B

2

C

3

D

6

2. The number of zeroes at the end of the cube root of the cube number 1000 is

A

1

B

2

C

3

D

4

3. The number of zeroes at the end of the cube of the number 100 is

A

1

B

2

C

4

D

6

4. The number of zeroes at the end of the cube root of the cube number 8000000 is

A

1

B

2

C

3

D

6

5. Find the smallest number by which the number 10000 must be divided to obtain a perfect cube.

A

2

B

5

C

10

D

100

6. Find the smallest number by which the number 128 must be multiplied to obtain a perfect cube.

A

2

B

4

C

3

D

8

7. 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

8. 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

9. 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

10. 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