Aptitude - Square Root and Cube Root - Discussion
Discussion Forum : Square Root and Cube Root - General Questions (Q.No. 12)
12.
0.0169 x ? = 1.3
Answer: Option
Explanation:
Let 0.0169 x x = 1.3.
Then, 0.0169x = (1.3)2 = 1.69
 x = |
1.69 | = 100 |
| 0.0169 |
Discussion:
12 comments Page 2 of 2.
Guru said:
1 decade ago
No answer is not 10 because we have remove the square root from 0.0169X
So (1.3)2
then,
0.0169X= (1.3*1.3)
0.0169X=1.69
X=1.69/0.0169
x=169/100/169/10000
then x= 169/100 * 169/10000
x=100 answer
So (1.3)2
then,
0.0169X= (1.3*1.3)
0.0169X=1.69
X=1.69/0.0169
x=169/100/169/10000
then x= 169/100 * 169/10000
x=100 answer
Bathula suresh said:
1 decade ago
The given value is 169/10000,so while applying root to the value we get 13/100, i.e;0.13
So if we multiply with 10 .den we get 1.3
ANS=10
So if we multiply with 10 .den we get 1.3
ANS=10
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