हिंदी
सी.आई.एस.सी.ई.आईसीएसई ICSE Class 8

Find the Cube-root of 8000 - Mathematics

Advertisements
Advertisements

प्रश्न

Find the cube-root of 8000.

योग

उत्तर

8000
= `root(3)(8000)`
= (4 x 4 x 4) x (5 x 5 x 5)
= 4 x 5
=20

4 8000
4 2000
4 500
5 125
5 25
5 5
  1
shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 4: Cubes and Cube Roots - Exercise 4 (B) [पृष्ठ ५१]

APPEARS IN

सेलिना Concise Mathematics [English] Class 8 ICSE
अध्याय 4 Cubes and Cube Roots
Exercise 4 (B) | Q 1.7 | पृष्ठ ५१

संबंधित प्रश्न

Find the  cubes of the number 40 . 


Which of the following is  perfect cube? 

 64


Which of the following is  perfect cube? 

216


Which of the following is  perfect cube? 

1000


Which of the following are cubes of odd natural numbers?
125, 343, 1728, 4096, 32768, 6859


What is the smallest number by which the following number must be multiplied, so that the products is perfect cube?

107811


By which smallest number must the following number be divided so that the quotient is a perfect cube?

1600


By which smallest number must the following number be divided so that the quotient is a perfect cube?

 35721


By which smallest number must the following number be divided so that the quotient is a perfect cube?

243000


What happens to the cube of a number if the number is multiplied by 3?


Write the units digit of the cube of each of the following numbers:
31, 109, 388, 833, 4276, 5922, 77774, 44447, 125125125


Which of the following number is  not perfect cubes? 

216


For of the non-perfect cubes in Q. No. 20 find the smallest number by which it must be  multiplied so that the product is a perfect cube.


Write true (T) or false (F) for the following statement:

 If a2 ends in 9, then a3 ends in 7.


Find the cube root of the following natural number 343 .


Find the cube-root of `125/216`


Find the cube-root of -216


Find the cube-root of `-(27)/(125)`


If a2 ends in 5, then a3 ends in 25.


Three numbers are in the ratio 2 : 3 : 4. The sum of their cubes is 0.334125. Find the numbers.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×