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:
592 comments Page 13 of 60.
Lokeshwari said:
4 weeks ago
Agree, 150 is the correct answer.
(10)
Sandip Thaware said:
2 years ago
Here we can use the formula;
The time taken by train to cross an object (i.e. man, pole, tree etc.)
T = L/S.
where T= time taken by train to cross an object.
L= Length of the train.
S= Speed of Train.
we have, S = 60 km/hr.
S = 60 * 5/18 ('*' symbol used for multiplication)
S = 16.66666 meter/second
T = 9 seconds.
Now, 9 = L/16.66666.
L = 9 * 16.
L = 149.99994~ 150 meter .
Answer = 150 meters.
The time taken by train to cross an object (i.e. man, pole, tree etc.)
T = L/S.
where T= time taken by train to cross an object.
L= Length of the train.
S= Speed of Train.
we have, S = 60 km/hr.
S = 60 * 5/18 ('*' symbol used for multiplication)
S = 16.66666 meter/second
T = 9 seconds.
Now, 9 = L/16.66666.
L = 9 * 16.
L = 149.99994~ 150 meter .
Answer = 150 meters.
(9)
Raj said:
2 years ago
@All.
speed(60)*1000(KM convert to meters)/3600(Hoursconvrt to sec)
->60*1000/3600 = 60 * 5/18 = 50/3.
speed(60)*1000(KM convert to meters)/3600(Hoursconvrt to sec)
->60*1000/3600 = 60 * 5/18 = 50/3.
(9)
Anil Magar said:
2 years ago
@Anuradha.
= 50/3*9.
= 16.6666667*9,
= 150M answer.
= 50/3*9.
= 16.6666667*9,
= 150M answer.
(9)
Saumya tripathi said:
1 year ago
Yes, the answer should be 150.
(9)
Revanth said:
9 months ago
How 5%18 came? could anyone please explain?
(9)
Suraj balaji kshirsagar said:
8 months ago
150 is the correct answer.
(9)
Akhil Joseph K J said:
7 months ago
Calculation: 60× (5 / 18)
Simplify:
(60×5)/18
Cancel common factors:
60 and 18 have a common factor of 6:
(10×6)×5/(3×6)
Cancel 6:
(10×5)/3 = 50/3.
Simplify:
(60×5)/18
Cancel common factors:
60 and 18 have a common factor of 6:
(10×6)×5/(3×6)
Cancel 6:
(10×5)/3 = 50/3.
(9)
Kamalesh Kamalesh said:
3 months ago
Agree, 150 is the correct answer.
(9)
Sariga Ashokkumar said:
2 months ago
A km/hr = [a×5÷18]m/s.
60 = [9×5÷18].
5÷2×60 = 150 meter.
60 = [9×5÷18].
5÷2×60 = 150 meter.
(9)
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