Aptitude - Problems on Trains - Discussion
Discussion Forum : Problems on Trains - General Questions (Q.No. 23)
23.
Two trains are running in opposite directions with the same speed. If the length of each train is 120 metres and they cross each other in 12 seconds, then the speed of each train (in km/hr) is:
Answer: Option
Explanation:
Let the speed of each train be x m/sec.
Then, relative speed of the two trains = 2x m/sec.
| So, 2x = | (120 + 120) |
| 12 |
2x = 20
x = 10.
 Speed of each train = 10 m/sec = |
 |
10 x | 18 |  |
km/hr = 36 km/hr. |
| 5 |
Discussion:
38 comments Page 4 of 4.
Priyanka said:
9 years ago
Why are we ignoring the relative speed?
Priyanka said:
7 years ago
How the speed of both trains same?
(1)
Prashanth said:
9 years ago
Why can't we consider as x kmph?
Sandeep said:
1 decade ago
(120 + 120) from where it comes?
Mike Lambulila said:
4 years ago
Where is 18/5 coming from?
(3)
VIDYASAGAR SHARMA said:
1 decade ago
How 18/5 comes?
Siva said:
6 years ago
How 18/5 came?
(1)
Dinesh said:
1 decade ago
How 18/5 came?
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