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Question
Find the cube-root of 250.047
Solution
250.047
= `(250047)/(1000)`
| 3 | 250047 |
| 3 | 83349 |
| 3 | 27783 |
| 3 | 9261 |
| 3 | 3087 |
| 3 | 1029 |
| 7 | 343 |
| 7 | 49 |
| 7 | 7 |
| 1 |
= `((3 xx 3 xx 3) xx (3 xx 3 xx 3) xx (7 xx 7 xx 7))/((10 xx 10 xx 10)`
= `(3 xx 3 xx 7)/(10)`
= `(63)/(10)`
= 6.3
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