Aptitude - Problems on Trains - Discussion

Discussion Forum : Problems on Trains - General Questions (Q.No. 5)
5.
A train passes a station platform in 36 seconds and a man standing on the platform in 20 seconds. If the speed of the train is 54 km/hr, what is the length of the platform?
120 m
240 m
300 m
None of these
Answer: Option
Explanation:

Speed = 54 x 5 m/sec = 15 m/sec.
18

Length of the train = (15 x 20)m = 300 m.

Let the length of the platform be x metres.

Then, x + 300 = 15
36

x + 300 = 540

x = 240 m.

Discussion:
282 comments Page 25 of 29.

SantiagoArg said:   1 decade ago
Who says the man is standing in the platform?

Sushama said:   9 years ago
36 - 20 = 16,
54 * 5/18 = 15,
16 * 15 = 240.

Vaibhav said said:   9 years ago
Please explain in detail that divide factor.

Nadeem said:   1 decade ago
In first row why second has been cancelled.

Amar Mali said:   2 years ago
Thanks, everyone for explaining the answer.
(8)

Anj said:   2 decades ago
The answer is perfectly right and logical.

Ranjitha said:   1 decade ago
Actually the answer can b 540.

15*36=540.

Sudhapriya said:   1 decade ago
Thank you vetri. I gained answer from you.

Swagath said:   1 decade ago
Thanks for sharing the useful information.

Yohitha said:   2 decades ago
@frank.

Thats the brilliant answer dude.


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