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:
487 comments Page 44 of 49.

G.Humayun said:   1 decade ago
Thanks friends its very useful.

Jaydev ramnath said:   10 years ago
Why it is 18/5? Please explain.

Tanvi said:   8 years ago
Why using 18/5? Please explain.

MAHA said:   2 years ago
How 18/5? Please explain to me.
(54)

Arjun said:   1 decade ago
Speed of man*time = 5*10 = 50.

Amit thakur said:   9 years ago
Thanks for these explanations.

Arup said:   8 years ago
What is 18/5?

Please explain.

Veni balamurugan said:   8 years ago
How come 25/2? Please explain.

Apple said:   9 years ago
What is 5/18? please explain.

Chemayek said:   5 years ago
Good explanation. Thanks all.


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