Discussion :: Decimal Fraction  General Questions (Q.No.2)
2.  What decimal of an hour is a second ? 

Answer: Option C Explanation:

Shalini Mishra said: (Nov 26, 2010)  
Tell me the short trick to solve in a minute. 
Sandeep said: (Apr 14, 2011)  
Tell me the short trick to solve in a minute 
Rapunzel Louise said: (Apr 19, 2011)  
Why is it 60 x 60? 
Sri said: (Jul 20, 2011)  
Here asked question is hour in second so we have to take minutes(60) and Hours (60) . In decimal form as 1/60*60 thats it. 
Vikas S said: (Aug 7, 2013)  
We couldn't find that answer without calculator, tell me easiest method without using calculator. 
Dipika said: (Aug 11, 2013)  
Why we take 1 here as 1/60*60 ? 
Vanitha said: (Aug 24, 2013)  
How to calculate 1/3600 = 0.00027? please explain. 
Naath said: (Aug 30, 2013)  
1/3600 3600)1( 3600)10(0.0 3600)100(0.00 3600)10000(0.00027 7200  26000 25000  01000 So, Answer is 0.00027. 
Krishna said: (Jan 28, 2014)  
Let x decimal of 1 hour=1 sec > (x/1000)*3600=1sec>x=1/3.6. x=0.277778>x/1000=0.00027 therefore, 0.00027 decimal of 1 hour =1sec. 
Bhagyavathi said: (Apr 1, 2014)  
How to calculate 1/3600=0.0027? please explain. I didn't understand. 
Benjamin said: (Jul 4, 2014)  
I don't get it how the answer was arrived? 
Hritik said: (Sep 16, 2014)  
Short trick, you are looking for. An hour is 1/3600 = 1/6*1/6*1/100 = 0.166*0.166*1/100 > 0.0256/100. So it will be slightly larger than 0.000256. Hence C. 
Kapil Joshi said: (Mar 12, 2015)  
As directed by @Hritik, disintegrate 1/3600 = 1/6*1/6*1/100, which gives: => 0.166*0.166*0.01...... Step 1. Step 1 can be written as; => (1.6*10^1)*(1.6*10^1)*(1*10^2). Solving this gives; =>(2.56*10^4) which equals 0.000256. 
Manas Kumar Patra said: (Jun 23, 2015)  
What is the short trick to solve the problem? 
Kupaza Suleiman said: (Jul 30, 2015)  
The solution has never satisfy me in regards to question. 
Mangal Das Lima said: (Nov 10, 2015)  
This could be the easiest way. Break 1/3600 into (1/36)*(1/100), Now it is easy to find the division of 1/36 = 0.027. And you know 1/100 = 0.01. Now multiply them you will get 0.027*0.01 = 0.00027. Which is the our answer. Is it the shortest way? 
Magdaline said: (Nov 17, 2015)  
1/3600 = 2.77. Why multiply that 2.77*1/10000? Please explain. 
Supriya said: (Mar 16, 2016)  
1/36000 = 1/36 *1/100. 36)100(0.027 72  280 252  280  So on.... Then finally, 1/36*1/100 = 0.027/100. = 0.00027. 
K.Jeyendran said: (Aug 14, 2016)  
Friends this answer: For 1 hours = 60mins, 1 mins = 60 sec, So, you get multiple of mins * sec (60min * 60sec) =36,000. Then, you can take root in 1/36,000. Finally, you get the answer is 0.00027. 
Jumter said: (Sep 28, 2016)  
Why does it take 60 * 60? 
Kaveri said: (Jul 20, 2017)  
Nice explanation, thanks @Naath. 
Utsav Sarkar said: (Jun 12, 2018)  
How come 60 * 60 in the remainder, while the answer is .000027? 
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