Aptitude - Square Root and Cube Root - Discussion
Discussion Forum : Square Root and Cube Root - General Questions (Q.No. 1)
1.
The cube root of .000216 is:
Answer: Option
Explanation:
| (.000216)1/3 | = |  |
216 |  |
1/3 |
| 106 |
| = | |
6 x 6 x 6 | |
1/3 |
| 102 x 102 x 102 |
| = | 6 |
| 102 |
| = | 6 |
| 100 |
= 0.06
Discussion:
63 comments Page 2 of 7.
Ravi said:
1 decade ago
Thanks namrata.
Mark said:
1 decade ago
Thanks namarta.
Murali said:
1 decade ago
6/102 can you people explain me how you got this step?
Narender said:
1 decade ago
Could tell me simple principle for this method ?
Jyothis said:
1 decade ago
It is a simple problem
(0.000216)= (216/10^6)
(216/10^6)= ((6*6*6)/(10^2*10^2*10^2))
By taking the cube root now
((6*6*6)/(10^2*10^2*10^2))^(1/3)= (6/10^2)
6/100=0.06ans
(0.000216)= (216/10^6)
(216/10^6)= ((6*6*6)/(10^2*10^2*10^2))
By taking the cube root now
((6*6*6)/(10^2*10^2*10^2))^(1/3)= (6/10^2)
6/100=0.06ans
Vikas said:
1 decade ago
Why we get 1/3?
Parul said:
1 decade ago
Because cube root is equal to 1/3.
Like : cube root 9 is equal to 9^1/3.
Got it. Vikas.
Like : cube root 9 is equal to 9^1/3.
Got it. Vikas.
Siva said:
1 decade ago
Please tell me friends is there any short cut find cube root.
Anil said:
1 decade ago
Easy method:
0.000216 = [216/10^6].
[0.000216]^1/3 = [216/10^6]^1/3.
= [6^3/10^6]^1/3.
= [6/10^2].
= 6/100=0.06.
0.000216 = [216/10^6].
[0.000216]^1/3 = [216/10^6]^1/3.
= [6^3/10^6]^1/3.
= [6/10^2].
= 6/100=0.06.
Raaz said:
1 decade ago
It is a simple problem:
(0.000216) = (216/10^6).
(216/10^6) = ((6*6*6)/(10^2*10^2*10^2)).
By taking the cube root now.
((6*6*6)/(10^2*10^2*10^2))^(1/3) = (6/10^2).
6/100 = 0.06 Answer.
(0.000216) = (216/10^6).
(216/10^6) = ((6*6*6)/(10^2*10^2*10^2)).
By taking the cube root now.
((6*6*6)/(10^2*10^2*10^2))^(1/3) = (6/10^2).
6/100 = 0.06 Answer.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers