Advertisements
Advertisements
Question
Find the cube-root of 250.047
Advertisements
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
APPEARS IN
RELATED QUESTIONS
Find the cubes of the number 16 .
Find the cubes of the number 40 .
Write the cubes of 5 natural numbers which are of the form 3n + 1 (e.g. 4, 7, 10, ...) and verify the following:
'The cube of a natural number of the form 3n + 1 is a natural number of the same form i.e. when divided by 3 it leaves the remainder 1'.
Which of the following is perfect cube?
166375
What is the smallest number by which the following number must be multiplied, so that the products is perfect cube?
1323
By which smallest number must the following number be divided so that the quotient is a perfect cube?
107811
Write true (T) or false (F) for the following statement:
No cube can end with exactly two zeros.
Which of the following number is cube of negative integer - 2744 .
Find the smallest number that must be subtracted from those of the numbers in question 2 which are not perfect cubes, to make them perfect cubes. What are the corresponding cube roots?
Find the cube root of the following natural number 17576 .
Find the cube root of the following natural number 74088000 .
Find the smallest number which when multiplied with 3600 will make the product a perfect cube. Further, find the cube root of the product.
Multiply 210125 by the smallest number so that the product is a perfect cube. Also, find out the cube root of the product.
Find the units digit of the cube root of the following number 175616 .
79570 is not a perfect cube
Show that 1944 is not a perfect cube
Find the smallest number by which 200 should be multiplied to make it a perfect cube
If the cube of a squared number is 729, find the square root of that number
Three numbers are in the ratio 2 : 3 : 4. The sum of their cubes is 0.334125. Find the numbers.
Evaluate:
`root(3)(27) + root(3)(0.008) + root(3)(0.064)`
