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:
592 comments Page 7 of 60.
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)
Harshitha said:
8 months ago
How 5/18 is calculated? please explain it.
(29)
Karegowda B H said:
11 months ago
60 * 1000m/3600s = 16.66m/s.
So, distance = 16.66 * 9 = 150m.
So, distance = 16.66 * 9 = 150m.
(28)
Devaritha said:
1 month ago
What is a pole?
In this problem, a “pole” is just a single post or point beside the railway track.
Distance covered by the train while crossing the pole = length of the train.
Formula:
Speed = Distance/Time.
And Distance = Speed × Time.
Convert km/hr into meters per second (m/s):
NOTE: 1 km/hr = 1×(5/18) m/s
60 km/hr = 60×(5/18) = 300/18 m/s
Multiply by time to get distance (length of the train): Distance = (300/18)×9 = 150 meters,
Answer: The length of the train = 150 meters.
In this problem, a “pole” is just a single post or point beside the railway track.
Distance covered by the train while crossing the pole = length of the train.
Formula:
Speed = Distance/Time.
And Distance = Speed × Time.
Convert km/hr into meters per second (m/s):
NOTE: 1 km/hr = 1×(5/18) m/s
60 km/hr = 60×(5/18) = 300/18 m/s
Multiply by time to get distance (length of the train): Distance = (300/18)×9 = 150 meters,
Answer: The length of the train = 150 meters.
(28)
Tapan said:
2 years ago
How we can get 5/18 meters per second?
(27)
Yash Singh said:
2 years ago
Length= Speed * Time.
Length = 60*(5/18)*9,
Length = 150m.
Length = 60*(5/18)*9,
Length = 150m.
(27)
LATHA said:
2 years ago
How did 5/18 came here? please explain.
(26)
LUBNA said:
1 year ago
but how do we convert km into m?? and where does that 5/18 come from?
Anyone, please explain to me.
Anyone, please explain to me.
(26)
Biranu medeksa said:
7 months ago
How 5/18 came? Anyone, please explain to me.
(26)
Jai said:
3 years ago
from the above statement:
60,000 m is crossed in=>3600 s.
? m is crossed in=> 9 s.
60000/x => 3600/9.
Do a normal cross-division method to find x. That's the answer.
60,000 m is crossed in=>3600 s.
? m is crossed in=> 9 s.
60000/x => 3600/9.
Do a normal cross-division method to find x. That's the answer.
(25)
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