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:
.6
.06
77
87
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 7 of 7.

Ashutosh said:   4 years ago
How (0.000216)^1/3? Please explain.
(1)

R. Jeeva priya said:   4 years ago
The Easy method is (0.000216) means now you see in the cube numbers where the last digit 6 is coming.

6 is coming in 6 cubes the see after last 3 digits from the question that is zero, and finally, 0.06 is the answer.
(11)

Humin said:   3 years ago
The Cube root of 10 is 1000.
Which means 6^3 /10^3.
i.e 6/10.

So, the correct answer should be 0.6 ( A).
(3)


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