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 19 of 59.
Samridhi said:
2 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:
9 years ago
Much better explanation sir I am very impressed by your solution that's very easy and easily understandable.
NARINDER KUMAR said:
2 years ago
9 = D*18/60 * 5 (USE S=D/T) AND (COVERT KM/HOUR IN TO M/SEC ) * 5/18.
So,
1 = D*2/300,
D = 300/2,
D = 150.
So,
1 = D*2/300,
D = 300/2,
D = 150.
(5)
Digvijaysinh said:
1 decade ago
In 3600 sec. train travel 60000 meter than in 9 sec. How many meter it travels?
9*60000/3600 = 150 meter.
9*60000/3600 = 150 meter.
Pinku said:
1 decade ago
Why in this question, you are saying to find out length of train it must be distance covered by the train?
Benetict said:
11 months ago
60km/60min = 1km/min.
1km = 1000metres , 1hr = 60mins.
1000m/60min = 16.666667.
16.666667 * 9 = 150metres.
1km = 1000metres , 1hr = 60mins.
1000m/60min = 16.666667.
16.666667 * 9 = 150metres.
(79)
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