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:
551 comments Page 1 of 56.
PRASHANTH said:
2 days ago
I still don't understand. How 5/18 came?
Please explain to me.
Please explain to me.
(5)
Hemanth said:
2 weeks ago
@All.
Let me explain in the short.
1st look at the options is in meters so 1 kms = 1000m.
1000/60 (speed) =16.66666 per sec,
Length = speed × time.
So, the answer is 16.6666 × 9 = 150m.
Let me explain in the short.
1st look at the options is in meters so 1 kms = 1000m.
1000/60 (speed) =16.66666 per sec,
Length = speed × time.
So, the answer is 16.6666 × 9 = 150m.
(34)
Jyothi said:
2 weeks 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.
(4)
Suriya said:
2 weeks ago
@Revanth.
We need to cover kmph to mtps 5/18 mtps to kmph 18/5.
We need to cover kmph to mtps 5/18 mtps to kmph 18/5.
(1)
Revanth said:
2 weeks ago
How 5%18 came? could anyone please explain?
(6)
Vee said:
2 weeks ago
I also don’t understand how 50/3 and 5/18 came? Anyone, please explain.
(1)
Cahrles said:
2 weeks ago
Please explain me the answer.
(1)
MM Aishwarya said:
2 weeks ago
Length = speed × time.
60*(5/18) = 50/3
(50/3)*9 = 150.
Length = 150 metres.
60*(5/18) = 50/3
(50/3)*9 = 150.
Length = 150 metres.
(2)
Saipriya said:
3 weeks ago
1km = 1000m,
1hr = 3600s.
1km/hr = 1000/3600.
= 5/18 m/s.
1hr = 3600s.
1km/hr = 1000/3600.
= 5/18 m/s.
(31)
Nrsp said:
3 weeks ago
Convert km/h to m/s.
1km = 1000m.
1hour = 3600sec.
Speed = 60km/h.
= 60 × 1000/3600,
= 60 × (5/18),
= 50/3.
1km = 1000m.
1hour = 3600sec.
Speed = 60km/h.
= 60 × 1000/3600,
= 60 × (5/18),
= 50/3.
(11)
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