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:
609 comments Page 17 of 61.
Neha kumari said:
1 year ago
For converting km to m 60*1000 = 60000m.
For converting hrs. to sec. 60 * 60 = 3600sec.
60000/3600 = 16.6666.
16.666 * 9 = 150.
For converting hrs. to sec. 60 * 60 = 3600sec.
60000/3600 = 16.6666.
16.666 * 9 = 150.
(42)
Ramesh said:
1 decade ago
3600sec = 60*10^3m.
9sec = ?.
answer = 9*60000/3600 = 150m.
Its very simple,
But I like your methods of solving for answer.
9sec = ?.
answer = 9*60000/3600 = 150m.
Its very simple,
But I like your methods of solving for answer.
Neeraj said:
10 years ago
Much better explanation sir I am very impress by your solution that's very easy and easy understandable,
Thank you very much.
Thank you very much.
Tapentadol said:
10 months ago
60km = 60000m.
1hr = 3600sec.
Now, if 60000m = 3600sec,
x = 9sec.
x = 60000m * 9sec/3600sec.
x = 150m.
1hr = 3600sec.
Now, if 60000m = 3600sec,
x = 9sec.
x = 60000m * 9sec/3600sec.
x = 150m.
(148)
Prashanth said:
1 decade ago
Speed = (60*(5/18)) divide 60&18 by 6, then,
Speed = (10*(5/3)) multiply 10 & 5,
Speed = (50/3).
That's all @Qaazi.
Speed = (10*(5/3)) multiply 10 & 5,
Speed = (50/3).
That's all @Qaazi.
Logan Dpm said:
9 years ago
One hour = 60 Km,
3600 Seconds = 60 Km,
60 Seconds = 1 Km,
9 Seconds = 0.15 Km,
1 Km = 1000 Meter.
0.15 Km = 150 Metter.
3600 Seconds = 60 Km,
60 Seconds = 1 Km,
9 Seconds = 0.15 Km,
1 Km = 1000 Meter.
0.15 Km = 150 Metter.
Shankaranathan .K said:
1 decade ago
Really its very nice guys. Thank you all for the explanation and your time spent in answering the question raised by other.
Bob Matthew said:
1 decade ago
@Mohammed Asif.
60x5/18=50/3. Now since the train crossed the pole in 9 seconds you multiply 50/3x9=150.
Hope this helps.
60x5/18=50/3. Now since the train crossed the pole in 9 seconds you multiply 50/3x9=150.
Hope this helps.
Dinesh said:
10 years ago
Nice sir I don't know aptitude but this type explanation should be given that time so easy to learn. Thank you once again.
Shuvro Jyoti said:
1 decade ago
This math is simple. But your explanation makes the math more easy to learn specially for beginner like me. Thanks a lot.
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