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:
609 comments Page 15 of 61.
Kalimuthu said:
2 decades ago
1000m=1km so 60000m goes in 1hour.
1 hour=3600 sec so 60000/3600 =16.666 so train cross in 1 second is 16.666m...so 9 seconds 16.6666*9=150meter .
1 hour=3600 sec so 60000/3600 =16.666 so train cross in 1 second is 16.666m...so 9 seconds 16.6666*9=150meter .
(7)
Kopila said:
7 months ago
@All.
The answer here calculated is the distance of the train travelled in 9 seconds right, then how can you claim it as the length if the train?
The answer here calculated is the distance of the train travelled in 9 seconds right, then how can you claim it as the length if the train?
(7)
Sara said:
1 decade ago
Distance = Time *speed
1km =1000Meteres
1hr =3600 seconds
Distance = 60*9/3600 =9/60 km
Distane in Metres =(9/60)*1000 =150M
simple and fast way
1km =1000Meteres
1hr =3600 seconds
Distance = 60*9/3600 =9/60 km
Distane in Metres =(9/60)*1000 =150M
simple and fast way
Rubiya said:
1 decade ago
@Gowtham.
If train length is more then it takes more time to cross the pole. If it is small train then it takes less time to cross the pole.
If train length is more then it takes more time to cross the pole. If it is small train then it takes less time to cross the pole.
Surya said:
10 years ago
The word "thank you" is not for your explanation @Sunder. But I got one doubt evar bike also maintain same speed and then length of bike is?
Gurram bhargavi said:
2 years ago
Length of train = speed * time.
= 9 * 60 * 5/18(converting km/hr into m/sec).
= 150 meters.
= 9 * 60 * 5/18(converting km/hr into m/sec).
= 150 meters.
(32)
Vijay dabasiya said:
1 decade ago
Easy method.
1km=1000 m.
1 hr=3600 sec.
Formula length of = velocity*time.
= 60*1000/3600 *9.
= 150 m.
1km=1000 m.
1 hr=3600 sec.
Formula length of = velocity*time.
= 60*1000/3600 *9.
= 150 m.
Srinivas said:
9 years ago
Yeah@ obviously. Mr. Sundar your answer was right but I think your solution is complicated. I need as simple as possible. Will you provide?
SAI MOHAN REDDY said:
1 decade ago
In the above question we can change minutes for seconds.
60*5/18 = (50/3) m/sec.
Length of the train is = (Speed*Time) = 50/3*9 = 150 m.
60*5/18 = (50/3) m/sec.
Length of the train is = (Speed*Time) = 50/3*9 = 150 m.
Nrsp said:
1 year ago
Convert km/h to m/s.
1km = 1000m.
1hour = 3600sec.
Speed = 60km/h.
= 60 × 1000/3600,
= 60 × (5/18),
= 50/3.
1km = 1000m.
1hour = 3600sec.
Speed = 60km/h.
= 60 × 1000/3600,
= 60 × (5/18),
= 50/3.
(16)
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