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:
279 comments Page 28 of 28.

Aashish kumar said:   9 years ago
Why we multiply 15*20?

Sivramakrishna said:   2 decades ago
How you took (15*20)?

Sanjay punj said:   1 decade ago
Thanks sachin kamble.

Sai said:   7 months ago
How 5/18 is came sir?
(7)

Rajiv said:   2 decades ago
Why we do (15*20) ?

Imran said:   8 years ago
Thanks @Satheesh.

Tayek said:   5 years ago
Thanks @Satheesh.

Nisha said:   7 years ago
Thanks, @Vetri.

Shelly said:   1 decade ago
Thanks Rahul.


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