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 11 of 60.
LATHA said:
2 years ago
How did 5/18 came here? please explain.
(26)
Naveen said:
2 years ago
60 * 60 = 3600,
1000/3600 = 5/18,
60Km/hr.
1km = 1000m,
1hr = 60min.
1sec = 60sec.
1000/3600 = 5/18,
60Km/hr.
1km = 1000m,
1hr = 60min.
1sec = 60sec.
(14)
Akshay Babu said:
2 years ago
Speed = 60 KM/H.
D = ?
T = 9 S.
[Km/h - M/s = 5/18] [M/s - Km/h = 18/5].
Speed is in km/h and time is in seconds.
Convert the speed from km/h to M/s.
So,
Speed = 60 * 5/18 = 50/3 (Fraction).
D = 50/3 * 9 =450/3 = 150 M.
D = ?
T = 9 S.
[Km/h - M/s = 5/18] [M/s - Km/h = 18/5].
Speed is in km/h and time is in seconds.
Convert the speed from km/h to M/s.
So,
Speed = 60 * 5/18 = 50/3 (Fraction).
D = 50/3 * 9 =450/3 = 150 M.
(15)
Nisar Ahmed said:
2 years ago
60 Km/hr.
1 km = 1000 m
1 hr = 60 min.
1 min = 60 sec.
Converting km/hr into m/sec.
1000m / 3600sec = 5/18,
So, we got this 5/18, Got it.
Now, Just multiply this by the actual value,
(Distance = Speed × Time),
that is; 60 * 5/18 = 50/3 m/sec and this distance is for one sec.
For 9 sec,
multiply 50/3 by 9.
50/3 * 9 = 150m.
1 km = 1000 m
1 hr = 60 min.
1 min = 60 sec.
Converting km/hr into m/sec.
1000m / 3600sec = 5/18,
So, we got this 5/18, Got it.
Now, Just multiply this by the actual value,
(Distance = Speed × Time),
that is; 60 * 5/18 = 50/3 m/sec and this distance is for one sec.
For 9 sec,
multiply 50/3 by 9.
50/3 * 9 = 150m.
(54)
Tapan said:
2 years ago
How we can get 5/18 meters per second?
(27)
Kurnool ranjith said:
2 years ago
How 5 came?
(11)
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)
Muhammed Jamsheer said:
2 years ago
@Raj
To convert km to metre;
Km - m = × 5/18.
m - km = × 18/5.
To convert km to metre;
Km - m = × 5/18.
m - km = × 18/5.
(20)
Bala bhaskar said:
2 years ago
Is the length of the train= distance cover by the train?
Please, anyone help me I have this doubt.
Please, anyone help me I have this doubt.
(4)
Raj said:
2 years ago
How 5/18 came? explain.
(18)
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