Aptitude - Problems on Trains - Discussion
Discussion Forum : Problems on Trains - General Questions (Q.No. 7)
7.
Two trains of equal length are running on parallel lines in the same direction at 46 km/hr and 36 km/hr. The faster train passes the slower train in 36 seconds. The length of each train is:
Answer: Option
Explanation:
Let the length of each train be x metres.
Then, distance covered = 2x metres.
Relative speed = (46 - 36) km/hr
| = |  |
10 x | 5 |  m/sec |
| 18 |
| = | |
25 | m/sec |
| 9 |
 |
2x | = | 25 |
| 36 | 9 |
2x = 100
x = 50.
Discussion:
232 comments Page 24 of 24.
Bhavithra said:
4 years ago
What is the meaning of relative speed?
Shaik Chereesh said:
4 years ago
Relative displacement is x not 2x.
The relative speed is 10.
Time is independent of the frame of reference.
The above points are correct according to my basic knowledge of physics.
Please correct me if the wrong.
The relative speed is 10.
Time is independent of the frame of reference.
The above points are correct according to my basic knowledge of physics.
Please correct me if the wrong.
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