Aptitude - Problems on Trains - Discussion
Discussion Forum : Problems on Trains - General Questions (Q.No. 2)
2.
A train 125 m long passes a man, running at 5 km/hr in the same direction in which the train is going, in 10 seconds. The speed of the train is:
Answer: Option
Explanation:
| Speed of the train relative to man = |  |
125 |  m/sec |
| 10 |
| = | |
25 | m/sec. |
| 2 |
| = | |
25 | x | 18 | km/hr |
| 2 | 5 |
= 45 km/hr.
Let the speed of the train be x km/hr. Then, relative speed = (x - 5) km/hr.
x - 5 = 45 
x = 50 km/hr.
Discussion:
487 comments Page 41 of 49.
Chandu said:
1 decade ago
Why it is subtracted ? please explain.
Priyanka said:
9 years ago
Why we consider v=5 to subtract u - v?
Moses Obia said:
5 years ago
Where was 18 got from? Please explain.
(6)
Sourav said:
1 decade ago
Why did we not converted 125 m to km?
Dinesh said:
9 years ago
Can you explain relative speed (x-5)?
Abuthahir said:
7 years ago
X-5 = 45.
Here x = 45+5,
Then x = 50.
Here x = 45+5,
Then x = 50.
Anjali said:
7 years ago
Thanks all for explaining the answer.
Vinod said:
7 years ago
Thanks all for explaining the answer.
Jayaprakash said:
3 months ago
How 13.89 came? Please explain to me.
(3)
Atique said:
2 decades ago
Nice Explanation Guys. Thanks a Lot.
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