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:
598 comments Page 15 of 60.
PrabuS said:
2 years ago
60km/hr = 5/18 * 60 m/s = 50/3 m/s.
50m/s means 50 metres for 3 seconds,
Then for 9 seconds - 150 metres.
50m/s means 50 metres for 3 seconds,
Then for 9 seconds - 150 metres.
(7)
Kopila said:
5 months ago
@All.
The answer here calculated is the distance of the train travelled in 9 seconds right, then how can you claim it as the length if the train?
The answer here calculated is the distance of the train travelled in 9 seconds right, then how can you claim it as the length if the train?
(7)
Gunjan kumari said:
5 months ago
Option D is the right answer.
(7)
Samyyyy said:
2 weeks ago
@All.
When we are converting km to meters, we have to take 5/18 as the options given in meters. So we have to do it.
When we are converting km to meters, we have to take 5/18 as the options given in meters. So we have to do it.
(7)
Nagarur Yeswanth said:
3 years ago
60 *5/18 = 50/3.
450m/3 = 150m.
450m/3 = 150m.
(6)
Sandeep said:
11 months ago
Agree, the answer is 150.
(6)
MM Aishwarya said:
11 months ago
Length = speed × time.
60*(5/18) = 50/3
(50/3)*9 = 150.
Length = 150 metres.
60*(5/18) = 50/3
(50/3)*9 = 150.
Length = 150 metres.
(6)
Kaustubh Kishor Salunkhe said:
9 months ago
@All Everyone,
For the people who asking how 5/18 came?
It is used to convert KMPH to MPS
Let me explain how and when to use it. The hint is in the Answers we can see 60 km/hr and answers in Meters.
If it's Vise Versa we will use 18/5 to get the answer in Kmph.
For the people who asking how 5/18 came?
It is used to convert KMPH to MPS
Let me explain how and when to use it. The hint is in the Answers we can see 60 km/hr and answers in Meters.
If it's Vise Versa we will use 18/5 to get the answer in Kmph.
(6)
Md shahid said:
9 months ago
The answer is 150m.
(6)
ABISHEK said:
9 months ago
150m is the correct answer.
(6)
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