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:
613 comments Page 25 of 62.
Bahauddin said:
7 years ago
Some thing is missing in the question and solution because if train crosses the pole means train will has to cross the extra length as much the length of train.
Thiru said:
7 years ago
36sec ---> 600m.
9sec ------> 600 * 9/36 = 150meters.
9sec ------> 600 * 9/36 = 150meters.
Zuberali said:
7 years ago
Best and easy explanation, thanks @Sundar.
Pallavi said:
7 years ago
Explanations are very clear to understand. Thanks all.
Evan said:
7 years ago
Thanks all for the explanation.
Sana said:
7 years ago
Nice explanation, thanks all for explaining.
Sk Anwar said:
7 years ago
Change the km/hr to m/sec using:
0.278*60=16.68;
16.68*9=150.12,
Answer is near the 150.
0.278*60=16.68;
16.68*9=150.12,
Answer is near the 150.
Anitha said:
7 years ago
Nice explanation. Thanks all.
Madhu said:
7 years ago
The train covers its own distance/length in 9 seconds. Therefore, its length is the distance it covers in 9 seconds. Now lets convert the speed into metres and time in seconds. The train covers 60000 metres in 3600 seconds. Therefore in 9 seconds, it would cover;
(60000/3600*9) = 150 metres.
(60000/3600*9) = 150 metres.
Kanth said:
7 years ago
Thanks all.
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