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:
587 comments Page 12 of 59.
Shamoil khan said:
2 years ago
Thanks all for explaining it.
(68)
Madhira kusuma said:
2 years ago
See here :
1km=1000meters
1 hr=3600 sec.
By dividing both meters and seconds here we get =1000/3600.
At final we get 5/18.
Length = (speed×time).
L=(60×5/18).
So here we get = 50/3.
Then finally calculate the total length of the train = (50/3 × 9).
M = 150.
Thank you
1km=1000meters
1 hr=3600 sec.
By dividing both meters and seconds here we get =1000/3600.
At final we get 5/18.
Length = (speed×time).
L=(60×5/18).
So here we get = 50/3.
Then finally calculate the total length of the train = (50/3 × 9).
M = 150.
Thank you
(557)
Madrid said:
2 years ago
60km/hr X (9s x 1min/60s x 1hr/60min) = 60km/hr * 2.5x10^-3hr.
km/hr * hr = km.
So, the answer is 0.15km or 150m.
km/hr * hr = km.
So, the answer is 0.15km or 150m.
(17)
Mahendra Budha said:
2 years ago
To find the length of the train, we can use the formula: length = (speed × time).
Given the speed is 60 km/hr and it crosses a pole in 9 seconds.
The length of the train would be 60 km/hr × (9 seconds ÷ 3600 seconds) = 0.15 km or 150 meters.
Given the speed is 60 km/hr and it crosses a pole in 9 seconds.
The length of the train would be 60 km/hr × (9 seconds ÷ 3600 seconds) = 0.15 km or 150 meters.
(52)
Naldo said:
2 years ago
How do we get 50/3? please explain.
(37)
Petchi Raja said:
2 years ago
@All.
Here, is my expplanation.
The train runs at 60 km/hr which means it will reach 60 km in 60 mins.
therefore 1 km/min = 1000m/60s = 16.66m/1s,
The train crosses 16.66 metres for each second.
So 16.66 * 9 = 150.
Here, is my expplanation.
The train runs at 60 km/hr which means it will reach 60 km in 60 mins.
therefore 1 km/min = 1000m/60s = 16.66m/1s,
The train crosses 16.66 metres for each second.
So 16.66 * 9 = 150.
(185)
Cheenie said:
2 years ago
5/18 means 5 meters/18 seconds so 5/18 is the conversion of 1km/h.
Thank you.
Thank you.
(29)
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)
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)
Arun said:
2 years ago
1km = 1000 meters.
1 hour = 3600 sec.
So, 1000/3600 = 5/18.
1 hour = 3600 sec.
So, 1000/3600 = 5/18.
(13)
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