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:
45 km/hr
50 km/hr
54 km/hr
55 km/hr
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:
478 comments Page 47 of 48.

Ankita said:   2 decades ago
Why its substracted?
(1)

Antony said:   2 decades ago
Please explain 18/5.

Jatin said:   6 years ago
Why 5 - X not taken?

Gnana said:   1 decade ago
Very nice vandha.

Rajeev said:   10 years ago
Nice explanation.

Arbaz said:   8 years ago
Well said @Rahul.

Chinmay said:   8 years ago
Thank you @Rahul.

Pradeep said:   6 years ago
It's 50 m/s unit.

Sonianenavath said:   3 weeks ago
Very Good Thanks.

Sanghaniakshay said:   1 decade ago
Thanks abhishek.


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