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 1 of 7.
Murali said:
1 decade ago
Its wrong it is .006
Sakshi said:
1 decade ago
Hey Murali! you are confused. Have a look.
We write 6/10= 0.6, 6/100= 0.06.
Its clear.
We write 6/10= 0.6, 6/100= 0.06.
Its clear.
Rose said:
1 decade ago
Ya correct.
Naseer said:
1 decade ago
See guys the simple technique is just watch the last digit i.e 6.
Now multiply the last digit in the options that should be tally with the last digit in the question.
Now observe total no of zeroes after .(decimal)
Got it?
Now multiply the last digit in the options that should be tally with the last digit in the question.
Now observe total no of zeroes after .(decimal)
Got it?
Afrin said:
1 decade ago
Why divided 216 by 10(6) and after that 6*6*6
---------
10(2)*10(2)*10(2)
I cant understand this solution...
---------
10(2)*10(2)*10(2)
I cant understand this solution...
Afrin said:
1 decade ago
Why 6/10 (2) ?
Pravin raj said:
1 decade ago
Obviously its corret.
Sangeetha said:
1 decade ago
Naseer please can you elaborate your solution.
Chandu said:
1 decade ago
Is there any shortcuts for finding cube roots and square roots? It there please tell me.
Namrata said:
1 decade ago
Always keep in mind that a cube root of six digit number is two digit number so cube root of .000216 is .06 and not .6.
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