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:
626 comments Page 12 of 63.
Rahul said:
1 decade ago
We get 16.67m/s.
That is, the train traveled 16.67 meters in 1 second.
Then multiply 9 seconds with 16.67 meters.
Then length of the train traveled 150 meters in 9 seconds.
That is, the train traveled 16.67 meters in 1 second.
Then multiply 9 seconds with 16.67 meters.
Then length of the train traveled 150 meters in 9 seconds.
Micheal Raj P said:
4 years ago
60km is converted to 60000m and 1 hour to 3600sec, there for 60000/3600 answer to 16.66 and multiple to 9sec and answer is 149.999.
So, here, the full value as 150 metres.
So, here, the full value as 150 metres.
(1)
Mahalakshmi Chatrathi said:
2 years ago
60 km/hr = 60 * 1000m/60 * 60 = 50/3m/s.
#speed = distance/time,
1km = 1000m,
1hr = 60m&
1min = 60s.
Then Length(l) = speed * time
l = 50/3 * 9 = 1350/9.
l = 150m.
#speed = distance/time,
1km = 1000m,
1hr = 60m&
1min = 60s.
Then Length(l) = speed * time
l = 50/3 * 9 = 1350/9.
l = 150m.
(51)
Kusuma Kumari Neelam said:
1 year ago
How 5/18 came I will explain.
1 km = 1000 m.
1hr = 60min.
1 min = 60sec.
60min = 3600 sec.
1000/3600 = 5/18.
(Cancelling two zeroes up and down and 2*5 = 10 and 2*18=36).
1 km = 1000 m.
1hr = 60min.
1 min = 60sec.
60min = 3600 sec.
1000/3600 = 5/18.
(Cancelling two zeroes up and down and 2*5 = 10 and 2*18=36).
(24)
Ashura ram said:
3 years ago
60Km/hr.
1km = 1000m
1hr = 60min.
1sec = 60sec.
Got it.
1000 ÷ 60×60.
The Formula is
Distance=speed×Time
Listen here,
D = S×T,
S = 60,
T = 9.
60 × 5 ÷ 18 × 9.
[150m].
1km = 1000m
1hr = 60min.
1sec = 60sec.
Got it.
1000 ÷ 60×60.
The Formula is
Distance=speed×Time
Listen here,
D = S×T,
S = 60,
T = 9.
60 × 5 ÷ 18 × 9.
[150m].
(16)
Mandla kavitha said:
1 decade ago
The speed of train is 60 km/h. Time taken by train is 9 sec.
Then length of train is (d = velocity*time).
(60*5)/18*9 =150 m.
Therefore;the length of train is 150 m.
Then length of train is (d = velocity*time).
(60*5)/18*9 =150 m.
Therefore;the length of train is 150 m.
MATTA.SRINUVASRAO said:
2 decades ago
I'M UNDERSTAND SIR BUT I'm suppose to be confusing to seeing above following questions so I'm kindly requesting you to explain the solutions above question, thank you.
(1)
PANKAJ KUMAR said:
1 decade ago
Hi @Apurva.
You are saying that 60km/hr.
1 km = 1000 m.
1 hr = 60 min.
Therefore 60km/60min.
How 60km/60 min.
What you want to explain it? I'm not understanding.
You are saying that 60km/hr.
1 km = 1000 m.
1 hr = 60 min.
Therefore 60km/60min.
How 60km/60 min.
What you want to explain it? I'm not understanding.
Sathiyaraj said:
10 years ago
Cross 60000(60 km) meters in 3600 seconds(1 hour).
60,000 m => 3600 seconds,
100 m => 6 seconds,
Hence 3 sec => 50 m,
So, 100 + 50 mts = 150 m (6 + 3 = 9 seconds).
60,000 m => 3600 seconds,
100 m => 6 seconds,
Hence 3 sec => 50 m,
So, 100 + 50 mts = 150 m (6 + 3 = 9 seconds).
RAMPAVI said:
8 years ago
Here we convert the 1 hour into seconds and the given time is 9 seconds.
We convert the kilometres into meters then we can easily solve it.
3600/9 = 6000/x.
x = 150m.
We convert the kilometres into meters then we can easily solve it.
3600/9 = 6000/x.
x = 150m.
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