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 42 of 59.
Suriya said:
4 years ago
How come 60*5/18 into 50/3? please explain.
BIJAY said:
4 years ago
@All.
We know that;
Velocity = Distance/Time.
so we can write,
Distance = Velocity*Time.
= (16.66)*(9) meters [=> 60km/hr convert into meters = 60*5/18. = 16.66 meter/sec.].
= 150 meters. [ANS].
We know that;
Velocity = Distance/Time.
so we can write,
Distance = Velocity*Time.
= (16.66)*(9) meters [=> 60km/hr convert into meters = 60*5/18. = 16.66 meter/sec.].
= 150 meters. [ANS].
Harshil Nakrani said:
4 years ago
Great, Thanks all for explaining the answer.
Raju said:
4 years ago
Super, thank you for your detailed explanation.
Ansu said:
3 years ago
Thank you so much for all your explanation.
Hariharan. said:
3 years ago
Thank you everyone for explaining the answer.
Vignesh ernesto said:
3 years ago
Thanks.
Micheal Raj P said:
3 years ago
60km is converted to 60000m and 1 hour to 3600sec, there for 60000/3600 answer to 16.66 and multiple to 9sec and answer is 149.999.
So, here, the full value as 150 metres.
So, here, the full value as 150 metres.
(1)
Shradha said:
3 years ago
Thank you all for explaining very well.
Saranya said:
3 years ago
There for 9seconds convert into hours.
60km convert into meters.
9/3600 * 60000 = 150.
60km convert into meters.
9/3600 * 60000 = 150.
(2)
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