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:
613 comments Page 9 of 62.
Shreya shital Upadhye said:
1 year ago
@All.
Here's my explanation.
A train running at a speed of 60 km/h takes 9 seconds to cross an electric pole.
Formula used:
Distance = speed × time.
1 km/h = (5/18) m/sec.
Calculation:
Length of train = distance.
Speed convert km.hr to m/sec.
⇒ 60 × (5/18).
⇒ Speed = 16.67 m/sec.
Distance = 16.67 × 9
⇒ 150 m.
∴ The length of the train is 150 m.
Here's my explanation.
A train running at a speed of 60 km/h takes 9 seconds to cross an electric pole.
Formula used:
Distance = speed × time.
1 km/h = (5/18) m/sec.
Calculation:
Length of train = distance.
Speed convert km.hr to m/sec.
⇒ 60 × (5/18).
⇒ Speed = 16.67 m/sec.
Distance = 16.67 × 9
⇒ 150 m.
∴ The length of the train is 150 m.
(46)
Akshata said:
1 year ago
60 * 5/18 = 50/3,
Length = speed * time.
l = 50/3 * 9sec= 150 meters.
Length = speed * time.
l = 50/3 * 9sec= 150 meters.
(5)
Mohan said:
1 year ago
@All.
Here, Speed of the train = 60×(5/18) = 50/3.
Here, Speed of the train = 60×(5/18) = 50/3.
(2)
Karegowda B H said:
1 year ago
60 * 1000m/3600s = 16.66m/s.
So, distance = 16.66 * 9 = 150m.
So, distance = 16.66 * 9 = 150m.
(28)
Nithi said:
1 year ago
According to me, the right answer should be 150.
(8)
Sree nithi said:
1 year ago
Answer should be 150
(5)
Ezhil N said:
1 year ago
Conversion formula for km/hr into m/sec = 5/18.
Conversion formula for m/sec into k/m = 18/5.
Conversion formula for m/sec into k/m = 18/5.
(55)
Ankit kumar said:
1 year ago
60*9/18.
50/3.
50/3*9.
= 150 Ans.
50/3.
50/3*9.
= 150 Ans.
(8)
Ritik negi said:
1 year 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)
Benetict said:
1 year 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)
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