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Aptitude - Problems on Trains - Discussion

Discussion Forum : Problems on Trains - General Questions (Q.No. 1)
Problems on Trains
1.
A train running at the speed of 60 km/hr crosses a pole in 9 seconds. What is the length of the train?
120 metres
180 metres
324 metres
150 metres
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:
587 comments Page 55 of 59.
Dharanish said:   6 years ago
Convert km to m - 60000.
Convert hr to sec - 3600.
60000/3600 = 16.666(speed)*9 (time) = 150.
Madhav Kulkarni said:   6 years ago
Train Speed is 60km/h ----- 60*(5/18)---------16.66 m/s.
time taken to cross the pole=9sec.

S=Distance(Length)/time.
s=16.66 time=9.
Distance(Length)=Speed*Time = 16.66*9 = 149.94 ===150.
So, Length = 150m.
Priya said:   6 years ago
@Koushik Reddy.

We use 5/18 to convert from km/hr to m/s in order to find the solution in terms of metres/seconds.
Teju said:   5 years ago
Speed of train: 60km/hr,
Train reaches the pole :9 sec,

Convert speed of Train from "Km/hr toM/sec,
60,000m/3600sec = 16.666 m/sec,

Length of train = 16.66*9 = 149.994M.
Tej said:   5 years ago
Very well explained. Thanks all.
Dharmaraj Gaikwad said:   5 years ago
Well explained, thanks.
Nayak said:   5 years ago
Well explained. Thanks all.
Monali said:   5 years ago
Very well explained, thanks all.
Harry said:   5 years ago
Very well explained, thanks all.
Shweta singh said:   5 years ago
Very well explained thank you guys.
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