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:
592 comments Page 9 of 60.
Raj said:
2 years ago
How 5/18 came? explain.
(18)
Amar Mali said:
1 year ago
Thanks everyone for explaining the answer.
(18)
Radhika C said:
7 months ago
Useful information, Thanks all.
(18)
Deepak said:
2 months ago
@All.
Here's my explanation:
1. You have to convert speed km/h into m/s.
And the formula to convert speed km/h into m/s is 60 x 5/18 (Note : 5/18 is a constant).
Speed = 16.67 m/s.
2. Distance = speed X time.
16.67 x 9 = 150m is the length of the train.
Here's my explanation:
1. You have to convert speed km/h into m/s.
And the formula to convert speed km/h into m/s is 60 x 5/18 (Note : 5/18 is a constant).
Speed = 16.67 m/s.
2. Distance = speed X time.
16.67 x 9 = 150m is the length of the train.
(18)
Madrid said:
2 years ago
60km/hr X (9s x 1min/60s x 1hr/60min) = 60km/hr * 2.5x10^-3hr.
km/hr * hr = km.
So, the answer is 0.15km or 150m.
km/hr * hr = km.
So, the answer is 0.15km or 150m.
(17)
Santoshi Nayak said:
2 years ago
To find the length we can use the formula is length = speed * time.
Speed = 60km/hr
Pole = 9second
The length of the train would be 60*9/3600 = 0.15km or 150 meters.
Speed = 60km/hr
Pole = 9second
The length of the train would be 60*9/3600 = 0.15km or 150 meters.
(17)
Shamanth said:
2 years ago
Simple and.
Speed = distance/time.
60 = distance/9.
Distance = 60 * 9,
Distance = 150.
Speed = distance/time.
60 = distance/9.
Distance = 60 * 9,
Distance = 150.
(16)
Ashura ram said:
2 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)
Nrsp said:
9 months 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.
(16)
Alavaala Praveen Kumar said:
3 years ago
60 * 5/18 = 50/3.
50/3 * 9,
Then 50 * 3,
Answer = 150.
50/3 * 9,
Then 50 * 3,
Answer = 150.
(15)
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