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:
584 comments Page 2 of 59.
Ritik negi said:
11 months ago
1 km = 1000 m,
1 hr has 3600 sec.
So, 1 km/hr = 1000m/3600s = 5/18 m/s.
1 hr has 3600 sec.
So, 1 km/hr = 1000m/3600s = 5/18 m/s.
(106)
Shunmuk Siva Narappa R said:
1 year ago
To solve this question, you can use the formula:
Length of train = (Speed of train * Time taken to cross the pole).
Given:
Speed of train = 60 km/hr.
Time taken to cross the pole = 9 seconds.
First, convert the speed from km/hr to m/s.
60 km/hr = 60*(5/18) = 50/3 m/s.
Now, plug the values into the formula:
Length of train = (50/3 * 9).
Length of train = 150 meters.
Therefore, the length of the train is 150 meters.
Length of train = (Speed of train * Time taken to cross the pole).
Given:
Speed of train = 60 km/hr.
Time taken to cross the pole = 9 seconds.
First, convert the speed from km/hr to m/s.
60 km/hr = 60*(5/18) = 50/3 m/s.
Now, plug the values into the formula:
Length of train = (50/3 * 9).
Length of train = 150 meters.
Therefore, the length of the train is 150 meters.
(95)
Arun s said:
2 years ago
1 km = 1000 m,
1 hr has 3600 sec.
So, 1 km/hr = 1000m/3600s = 5/18 m/s.
1 hr has 3600 sec.
So, 1 km/hr = 1000m/3600s = 5/18 m/s.
(94)
Sri said:
2 years ago
How we get 5 /18? Please explain to me.
(89)
VVVR said:
11 months ago
1km = 1000m.
1hour = 3600sec.
1000/3600 = 5/18 mps.
1hour = 3600sec.
1000/3600 = 5/18 mps.
(87)
Benetict said:
11 months ago
60km/60min = 1km/min.
1km = 1000metres , 1hr = 60mins.
1000m/60min = 16.666667.
16.666667 * 9 = 150metres.
1km = 1000metres , 1hr = 60mins.
1000m/60min = 16.666667.
16.666667 * 9 = 150metres.
(79)
Aathilakshmi said:
2 years ago
Length of the train = Speed × Time.
Time=9s.
Speed = 60 km/hr. (To convert speed into m/s from km/hr)
1km = 1000m so 60km = 60000m.
1 hr = 3600seconds.
Speed = 60000/3600 m/s.
= 50/3 m/s.
Length of the train = Speed × time.
= 50/3×9.
= 150m.
Time=9s.
Speed = 60 km/hr. (To convert speed into m/s from km/hr)
1km = 1000m so 60km = 60000m.
1 hr = 3600seconds.
Speed = 60000/3600 m/s.
= 50/3 m/s.
Length of the train = Speed × time.
= 50/3×9.
= 150m.
(78)
Abhishek said:
1 year ago
60 km/h.
1 km/minutes.
1000/60 = 16.6666/sec
16.6666*9 = 150meter.
1 km/minutes.
1000/60 = 16.6666/sec
16.6666*9 = 150meter.
(77)
Kenshika venistran said:
2 years ago
We know that 1 kilometre = 1000 meters and 1 hour = 3600 seconds.
Now, 1 km/h can also be written as 1000/3600: 1 (kilometre/hour) = 1000/3600 (meters/seconds).
So, this is the formula which is used to convert km/h to m/s.
On simplifying 1000/3600 further, we get 5/18.
Now, 1 km/h can also be written as 1000/3600: 1 (kilometre/hour) = 1000/3600 (meters/seconds).
So, this is the formula which is used to convert km/h to m/s.
On simplifying 1000/3600 further, we get 5/18.
(73)
Mahen said:
2 years ago
1 km = 1000 meter.
and 1 hrs= 3600 sec.
So converting it in mtr/sec= 1000/3600.
So, you will get 5/18.
and 1 hrs= 3600 sec.
So converting it in mtr/sec= 1000/3600.
So, you will get 5/18.
(73)
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