Aptitude - Problems on Trains - Discussion
Discussion Forum : Problems on Trains - General Questions (Q.No. 18)
18.
A 300 metre long train crosses a platform in 39 seconds while it crosses a signal pole in 18 seconds. What is the length of the platform?
Answer: Option
Explanation:
| Speed = |  |
300 |  |
m/sec = | 50 | m/sec. |
| 18 | 3 |
Let the length of the platform be x metres.
| Then, | |
x + 300 | |
= | 50 |
| 39 | 3 |
3(x + 300) = 1950
x = 350 m.
Discussion:
39 comments Page 4 of 4.
Sushma said:
1 decade ago
Hey why should we want to use x+300 here?
Akash said:
5 years ago
50/3 * 21.
21*50 = 1050,
1050/3 = 350.
21*50 = 1050,
1050/3 = 350.
(2)
Kushi said:
4 years ago
Did anyone please explain it clearly?
(4)
Abhi said:
7 years ago
@Sundar.
Thanks For the explanation.
Thanks For the explanation.
Hadhik said:
5 years ago
I am not getting. Please explain.
(1)
Akshitkumar said:
9 years ago
Tell the shortcut in detail.
Ramesh said:
1 decade ago
How that 50/3 is coming?
Pooja said:
1 decade ago
How 50/3 is coming?
Nikita said:
8 years ago
Thank you @Umesh.
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