Aptitude - Problems on Trains - Discussion

Discussion Forum : Problems on Trains - General Questions (Q.No. 26)
26.
Two trains are running at 40 km/hr and 20 km/hr respectively in the same direction. Fast train completely passes a man sitting in the slower train in 5 seconds. What is the length of the fast train?
23 m
23 2 m
9
27 7 m
9
29 m
Answer: Option
Explanation:

Relative speed = (40 - 20) km/hr = ( 20 x 5 ( m/sec = ( 50 ( m/sec.
18 9

Therefore Length of faster train = ( 50 x 5 ( m = 250 m = 27 7 m.
9 9 9

Discussion:
72 comments Page 6 of 8.

Hrushi said:   8 years ago
Please explain clearly. Why we ignore the length of the slow train?

Mj pala said:   1 decade ago
If the question is to find the length of the slower train, then?

Antrinitz singh said:   1 decade ago
I can't understand anything can anyone explain with formula.

Sunny said:   1 decade ago
Please can anyone tell me the length of the slower train?

Rohit Parmar said:   6 years ago
How to simplify 250/9 to 27*7/9?

Please explain clearly.

Madhusudhan said:   7 years ago
How to simplify 250/9 to 27*7/9? Please explain clearly.

Sagar said:   4 years ago
Why we don't count two train lengths? Anyone explain me.
(6)

Deepak rawat said:   9 years ago
How to convert 250/9 to mixed fraction? Please explain.

Gargi said:   1 decade ago
Hey guys Haritha was right! It's also not clear to me.

Manil Shylla said:   7 years ago
Please explain me with a simple step how we got 250/9?


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