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:
587 comments Page 8 of 59.
Astha said:
2 weeks ago
How come 5/18? Please explain.
(24)
SRIRAM said:
6 months ago
Why we are calculating 5/18 not 18/5? Please explain it.
(23)
Nithish.S said:
3 years ago
Convert km to m - 60000.
Convert hr to sec - 3600.
Sso, 60000/3600 = 16.666(speed) * 9 (time) = 150.
Convert hr to sec - 3600.
Sso, 60000/3600 = 16.666(speed) * 9 (time) = 150.
(22)
Manikandan said:
2 years ago
Data:
T=9,
S=?,
L=?
Time = length/seconds.
S = 60*5/18.
S = 16.6666,
T = L/S.
9 = L/16.6666,
L = 9×16.6666,
L = 149.9,
L = 150.
T=9,
S=?,
L=?
Time = length/seconds.
S = 60*5/18.
S = 16.6666,
T = L/S.
9 = L/16.6666,
L = 9×16.6666,
L = 149.9,
L = 150.
(22)
Anjali Singh said:
8 months ago
Should any one tell me how 5/18 came here?
(21)
Narayan Karki said:
2 years ago
Where,
Speed = Distance(s)/Time(t).
To convert speed into m/s from km/hr.
Then, use the formula = Speed x Time = 100/6 * 9 = 150m.
Speed = Distance(s)/Time(t).
To convert speed into m/s from km/hr.
Then, use the formula = Speed x Time = 100/6 * 9 = 150m.
(20)
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)
Ivan said:
8 months ago
I still don't understand. How 5/18 came? Please explain to me.
(20)
Raj said:
2 years ago
How 5/18 came? explain.
(18)
Amar Mali said:
1 year ago
Thanks everyone for explaining the answer.
(18)
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers