Aptitude - Problems on Trains - Discussion

Discussion Forum : Problems on Trains - General Questions (Q.No. 22)
22.
Two goods train each 500 m long, are running in opposite directions on parallel tracks. Their speeds are 45 km/hr and 30 km/hr respectively. Find the time taken by the slower train to pass the driver of the faster one.
12 sec
24 sec
48 sec
60 sec
Answer: Option
Explanation:

Relative speed = = (45 + 30) km/hr
= ( 75 x 5 ( m/sec
18
= ( 125 ( m/sec.
6

We have to find the time taken by the slower train to pass the DRIVER of the faster train and not the complete train.

So, distance covered = Length of the slower train.

Therefore, Distance covered = 500 m.

Therefore Required time = ( 500 x 6 ( = 24 sec.
125

Discussion:
81 comments Page 8 of 9.

Hemanath said:   8 years ago
How to convert into min? Please tell me.

Manohar said:   1 decade ago
Its a simple brain teasing question.

Vishwa said:   1 decade ago
Very tricky Example...

Good one...

Harshal said:   7 months ago
I think the right answer is 48 sec.
(4)

Shree said:   7 years ago
Thanks for explaining the answer.

Ddv said:   9 months ago
Yes, the right answer is 48 sec.
(2)

Pallavi said:   8 years ago
How 5/18 coming in the problem?

Shubham said:   7 years ago
The correct answer is 48 sec.

Aashu said:   1 decade ago
Why the distance is 500 ?

Vaidya said:   5 years ago
Answer should be 48.
(7)


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