Aptitude - Decimal Fraction - Discussion
Discussion Forum : Decimal Fraction - General Questions (Q.No. 2)
2.
What decimal of an hour is a second ?
Answer: Option
Explanation:
| Required decimal = | 1 | = | 1 | = .00027 |
| 60 x 60 | 3600 |
Discussion:
28 comments Page 2 of 3.
Benjamin said:
1 decade ago
I don't get it how the answer was arrived?
Hritik said:
1 decade ago
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.
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:
1 decade ago
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.
=> 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.
(1)
Manas kumar patra said:
1 decade ago
What is the short trick to solve the problem?
(1)
Kupaza Suleiman said:
1 decade ago
The solution has never satisfy me in regards to question.
(1)
Mangal das lima said:
10 years ago
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?
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?
(1)
Magdaline said:
10 years ago
1/3600 = 2.77.
Why multiply that 2.77*1/10000? Please explain.
Why multiply that 2.77*1/10000? Please explain.
(1)
Supriya said:
9 years ago
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.
36)100(0.027
72
---
280
252
---
280
|||
So on....
Then finally, 1/36*1/100 = 0.027/100.
= 0.00027.
(1)
K.jeyendran said:
9 years ago
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.
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.
(15)
Jumter said:
9 years ago
Why does it take 60 * 60?
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