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 1 of 2.
Marsel said:
4 years ago
The answer is 100 as x has a square in it when removing the no.
So, finally, when we get 10 as the answer we square 10 as the answer is 100.
So, finally, when we get 10 as the answer we square 10 as the answer is 100.
(2)
Joshna said:
4 years ago
Yes, agree, the correct answer is 10.
(2)
Asna said:
4 years ago
10 is the right answer.
(2)
Archana padhi said:
5 years ago
The Correct Answer is 10.
(2)
Aleena said:
5 years ago
Answer is 10. How it will be 100?
(1)
Kewal said:
8 years ago
Thanks for all your explanation of the answer.
Ashish said:
1 decade ago
Yes the answer is 100.
Root of (0.0169*x) = 1.3.
Root of (169/10000*x) = 1.3.
13/100*(root of x) = 1.3.
Root of x = 1.3*(100/13).
Root of x = 10.
So finally x= square of 10 which is 100.
Root of (0.0169*x) = 1.3.
Root of (169/10000*x) = 1.3.
13/100*(root of x) = 1.3.
Root of x = 1.3*(100/13).
Root of x = 10.
So finally x= square of 10 which is 100.
Radhika K R said:
1 decade ago
Hey, Answer must be 100:
13 * 10^(-2) * root(x) = 1.3.
root(x) = 1.3 / (13 * 10^(-2) ).
root(x) = 10.
x = 10 * 10 = 100.
13 * 10^(-2) * root(x) = 1.3.
root(x) = 1.3 / (13 * 10^(-2) ).
root(x) = 10.
x = 10 * 10 = 100.
Ravi said:
1 decade ago
@Guru.
If you remove the square root from 0.0169X, then why you have squared 1.3 like (1.3)^2.
If you remove the square root from 0.0169X, then why you have squared 1.3 like (1.3)^2.
Parag said:
1 decade ago
No need to calculate simply how many digit(0)need to get 1.69 from 0.0169 that 2 digit need to move from right side from 0.0169 to left side that much zero need to add to 1.
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