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:
493 comments Page 33 of 50.
Sushanth ratan said:
9 years ago
@Jothi.
-5 if it goes on the other side it becomes plus (+).
-5 if it goes on the other side it becomes plus (+).
Naveen said:
5 years ago
I can't understand this sum please anyone explain me briefly.
Sahil said:
1 decade ago
Nice answer with explanation. It is very easy to understand.
Sada said:
1 decade ago
Any basic formula is there for this problem kindly explain.
Bala said:
9 years ago
Why are you divided 125/10 at the 1st step? Please explain.
Vipin said:
8 years ago
Hi, I am not getting this. Please anyone help me to get it.
Hari said:
1 decade ago
Excuse me? Why we divided 125 with 10?. Please explain me.
Krishna said:
1 decade ago
Is there any shortcut method to learn the relative motion?
Lakshmi said:
6 years ago
Relative speed subtracted by actual speed so we get X - 5.
Webisa Ibrahim said:
2 years ago
I am not getting this. Anyone, help me to understand this.
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