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 45 of 49.

Nig said:   4 months ago
Thanks all for explaining it.
(3)

Shashank said:   1 decade ago
Hi. Please tell me why x-5 ?

Koser said:   8 years ago
Why is it divided by 125/10?

Nas said:   2 decades ago
Nice explanation friends. !

Tarun dumra said:   1 decade ago
Nice expalnation by ankita.

Swati said:   2 decades ago
Why is it divided by 18/5?
(2)

SHANMUGA PRIYA.TEX said:   2 decades ago
NICE EXPLANATION ABHISHEK.

Neeraja said:   1 decade ago
Why it is subtracted by 5?

Pabitra mohan das said:   9 years ago
Why it is divided by 18/5?

Yash said:   5 years ago
Why they have done 125/10?


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