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 21 of 24.
Bhanu said:
1 decade ago
What is relative speed ? please explain.
Amjad Raja said:
9 years ago
Why considered only 36 in the above step?
Shri.. said:
3 years ago
@Bushra Ahmed.
2x=25/9*36 = 900/9 = 100.
2x=25/9*36 = 900/9 = 100.
(2)
Shashi said:
7 years ago
Why the distance covered is taken as 2x?
P sudhakar said:
1 decade ago
Why did take the differences of speed?
Bhavithra said:
4 years ago
What is the meaning of relative speed?
Ruchi chaubey said:
6 years ago
How did you take 2x?
Please explain.
Please explain.
Yuva kumar said:
3 years ago
How 2x/36 = 25/9? Please explain me.
(1)
Mounika said:
10 years ago
We are finding the relative speed.
RAHAMAN said:
1 decade ago
EASIEST WAY
(10*5/18)*36=100/2=50
(10*5/18)*36=100/2=50
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