Aptitude - Problems on Trains - Discussion
Discussion Forum : Problems on Trains - General Questions (Q.No. 1)
1.
A train running at the speed of 60 km/hr crosses a pole in 9 seconds. What is the length of the train?
Answer: Option
Explanation:
| Speed = |  |
60 x | 5 |  m/sec |
= | |
50 | m/sec. |
| 18 | 3 |
Length of the train = (Speed x Time).
 Length of the train = |
|
50 | x 9 | m = 150 m. |
| 3 |
Discussion:
597 comments Page 20 of 60.
Pinku said:
1 decade ago
Why in this question, you are saying to find out length of train it must be distance covered by the train?
Benetict said:
1 year ago
60km/60min = 1km/min.
1km = 1000metres , 1hr = 60mins.
1000m/60min = 16.666667.
16.666667 * 9 = 150metres.
1km = 1000metres , 1hr = 60mins.
1000m/60min = 16.666667.
16.666667 * 9 = 150metres.
(79)
Santosh said:
1 decade ago
The problems and you people's explanation and coordination and sharing knowledge. I like these very much.
Raj said:
2 years ago
@All.
speed(60)*1000(KM convert to meters)/3600(Hoursconvrt to sec)
->60*1000/3600 = 60 * 5/18 = 50/3.
speed(60)*1000(KM convert to meters)/3600(Hoursconvrt to sec)
->60*1000/3600 = 60 * 5/18 = 50/3.
(9)
PrabuS said:
2 years ago
60km/hr = 5/18 * 60 m/s = 50/3 m/s.
50m/s means 50 metres for 3 seconds,
Then for 9 seconds - 150 metres.
50m/s means 50 metres for 3 seconds,
Then for 9 seconds - 150 metres.
(7)
ARADHANA said:
1 decade ago
The first answer which was given by sunder is best, even a kid can understand it well, well done sunder.
MNS said:
9 years ago
One more time explain me.
I cannot understand this step (6 * (5/18) * 9) = 150. Pease explains briefly.
I cannot understand this step (6 * (5/18) * 9) = 150. Pease explains briefly.
S. Gayathri said:
3 years ago
Speed = distance/time taken.
60 *1000 = length/ 9/3600.
1 hr = 3600 seconds.
9/3600*60*1000 = 150 m.
60 *1000 = length/ 9/3600.
1 hr = 3600 seconds.
9/3600*60*1000 = 150 m.
Mahen said:
2 years ago
1 km = 1000 meter.
and 1 hrs= 3600 sec.
So converting it in mtr/sec= 1000/3600.
So, you will get 5/18.
and 1 hrs= 3600 sec.
So converting it in mtr/sec= 1000/3600.
So, you will get 5/18.
(73)
Edger said:
1 decade ago
60*5/18 = how to calculate this logic, but I'm clear next step --50/3*9=150---guys please explan this.
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