Discussion :: Square Root and Cube Root  General Questions (Q.No.12)
12. 
0.0169 x ? = 1.3 

Answer: Option B Explanation: Let 0.0169 x x = 1.3. Then, 0.0169x = (1.3)^{2} = 1.69

Bathula Suresh said: (Jul 20, 2011)  
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 
Guru said: (Dec 30, 2011)  
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 
Parag said: (Jul 28, 2013)  
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. 
Ravi said: (Oct 24, 2013)  
@Guru. If you remove the square root from 0.0169X, then why you have squared 1.3 like (1.3)^2. 
Radhika K R said: (Jan 1, 2014)  
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. 
Ashish said: (Jul 18, 2015)  
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. 
Kewal said: (Mar 22, 2017)  
Thanks for all your explanation of the answer. 
Aleena said: (Apr 1, 2020)  
Answer is 10. How it will be 100? 
Archana Padhi said: (Jul 17, 2020)  
The Correct Answer is 10. 
Asna said: (Jun 20, 2021)  
10 is the right answer. 
Joshna said: (Jul 16, 2021)  
Yes, agree, the correct answer is 10. 
Marsel said: (Oct 9, 2021)  
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. 
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