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:
643 comments Page 20 of 65.
Owais Khan said:
3 years ago
Given;
60 km = 60 * 1000 = 60,000m
1 Hr = 60 * 60 = 3600 Sec.
Solution:
60,000/3600 * 9 Sec. = 150m.
60 km = 60 * 1000 = 60,000m
1 Hr = 60 * 60 = 3600 Sec.
Solution:
60,000/3600 * 9 Sec. = 150m.
(194)
Sudhakar said:
2 decades ago
It's useful to science students,and every student know the how to change the units.
so thankyou very much sir.
so thankyou very much sir.
Chithra said:
9 years ago
Thanks for all who have give explanation for this question, without your help I can't understand this problem.
Aman said:
8 years ago
We have to multiply 5/18 to convert the km/hr to m/s.
We have to convert it because time is given in seconds.
We have to convert it because time is given in seconds.
Samridhi said:
4 years ago
Speed = 60 km/hr= 60* (5/18) m/s = 16.67 m/s.
Time= 9 sec.
Distance = speed* time.
Distance = 16.67 * 9 =150m.
Time= 9 sec.
Distance = speed* time.
Distance = 16.67 * 9 =150m.
(8)
Hitesh said:
1 decade ago
When I saw the explanation I was confused that why these gyes used 5/18 to multiply But now I got it. Thanks!
Srinu said:
1 decade ago
We know that
1km=1000meters
1hr=3600seconds
1km/1hr=1000/3600=10/36=5/18m/s
1km/hr=5/18m/s
60km/hr=(60*5/18).
1km=1000meters
1hr=3600seconds
1km/1hr=1000/3600=10/36=5/18m/s
1km/hr=5/18m/s
60km/hr=(60*5/18).
Prashantkumar Nigadi said:
1 decade ago
We know that
1km=1000meters
1hr=3600seconds
1km/1hr=1000/3600=10/36=5/18m/s
1km/hr=5/18m/s
60km/hr=(60*5/18)
1km=1000meters
1hr=3600seconds
1km/1hr=1000/3600=10/36=5/18m/s
1km/hr=5/18m/s
60km/hr=(60*5/18)
SANTOSH, aps, goregaon said:
1 decade ago
Total exp= 15%+55%= 70%
Let salary rs.100
Save= 100-70= Rs.30%
Rs.30%= 12750.
100% = 12750/30x100=42500.
Let salary rs.100
Save= 100-70= Rs.30%
Rs.30%= 12750.
100% = 12750/30x100=42500.
Rohit said:
1 decade ago
Much better explanation sir I am very impressed by your solution that's very easy and easily understandable.
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