Aptitude - Problems on Trains - Discussion
Discussion Forum : Problems on Trains - General Questions (Q.No. 1)
1.
A train running at the speed of 60 km/hr crosses a pole in 9 seconds. What is the length of the train?
Answer: Option
Explanation:
| Speed = |  |
60 x | 5 |  m/sec |
= | |
50 | m/sec. |
| 18 | 3 |
Length of the train = (Speed x Time).
 Length of the train = |
|
50 | x 9 | m = 150 m. |
| 3 |
Discussion:
587 comments Page 33 of 59.
Radhakrishnan L said:
9 years ago
Thank you for all your answers.
G hari krishna said:
9 years ago
You all converted km --> m. Why don't you convert seconds into hours?
Then S=d/t,
Then D=s*t.
But t=9 sec.
If we convert it into hours form we will get 1/400.
Then d=60*1/400.
Is it correct method. Let me explain in this way guys.
Then S=d/t,
Then D=s*t.
But t=9 sec.
If we convert it into hours form we will get 1/400.
Then d=60*1/400.
Is it correct method. Let me explain in this way guys.
Pratiksha said:
9 years ago
It's really a nice explanation. It really helpful for beginners. I understood easily. Thank you all.
Siva said:
9 years ago
Can anybody tell me clearly how 50/3 m/sec came?
Manjesh said:
9 years ago
60 * 5/18 = 16.6666667. Then, Why it is divided by 50/3?
Sam prakash shine said:
9 years ago
@Suraj.
5/18 is for converting the km/hour into m/sec.
5/18 is for converting the km/hour into m/sec.
Suraj said:
9 years ago
Why it is divided by 5/18?
Ayushi said:
9 years ago
@All.
Very good explanation thanks a lot for helping us.
Very good explanation thanks a lot for helping us.
Hari mahe said:
9 years ago
That is (60 * (5/18) * 9) = 150.
Actually, the train speed is given in 60km/hour. We just convert that into m/sec as follows:
60km/hour = 60 * (5/18)m/sec that is equal to 150.
Actually, the train speed is given in 60km/hour. We just convert that into m/sec as follows:
60km/hour = 60 * (5/18)m/sec that is equal to 150.
Asuthosh said:
9 years ago
Well explained. Thank you all.
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