Question

Cubes and Cube Roots of Numbers
1. Find the smallest number by which 9720 should be divided to get a perfect cube.
2. Find the smallest number by which 3600 should be multiplied to get a perfect cube.
3. Find the smallest number by which 1188 should be divided to get a perfect cube.
4. Find the smallest number by which 68600 should be multiplied to get a perfect cube.
5. Find the cube root of the following using estimation:
i.
493039
ii.
148877
357911
iv.
117649
V.
9261
vi.
46656
vii. 531441
viii. 970299
ix. 778688
X.
300763​

Answer 1

Answer:

Step-by-step explanation:

We can see that 3×3×5 or 45 is the number because 9720 is not a perfect cube. As 216 is the perfect cube, therefore, 45 is the smallest number by which the number 9720 should be divided to get a perfect cube.