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?
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 26 of 29.
Vamsi said:
8 months ago
54×5/18x(36 sec-20 sec).
= 15 × 16 = 240.
= 15 × 16 = 240.
(59)
Shro said:
1 decade ago
@ Rahul Nicely explained ...thank you :)
ASIFAS HASPURA said:
9 years ago
@Vetri & @Sara both are correct.
Aryan said:
8 years ago
Why did they take 20 instead of 36?
Siva krishna said:
2 decades ago
I have also same doubt explain me
Gaurang said:
2 decades ago
Amit thanks for answer correctly.
Deepan said:
2 decades ago
Hai friends why (x+300)/36 = 15 ?
Chinu said:
1 decade ago
Please explain why we took x+300?
Priya said:
2 decades ago
Yeah the answer must be C. 300m.
Raul said:
2 decades ago
Its simple and great explanation
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