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:
285 comments Page 27 of 29.
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
Kiran said:
1 decade ago
Speed of the train will be null.
Somnath sen said:
8 years ago
Anyone Please explain it for me.
Sagar Dombale said:
7 years ago
What is 5/18? Please explain me.
Kavya said:
6 years ago
Why we have to multiple 15*20?
Arun said:
2 decades ago
@divya :yeah... Its good..
Bboy said:
10 years ago
Why have we divided by 36?
Zainab said:
9 years ago
@Frank.
Good explanation.
Good explanation.
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