Aptitude - Problems on Trains - Discussion
Discussion Forum : Problems on Trains - General Questions (Q.No. 15)
15.
A train 110 metres long is running with a speed of 60 kmph. In what time will it pass a man who is running at 6 kmph in the direction opposite to that in which the train is going?
Answer: Option
Explanation:
Speed of train relative to man = (60 + 6) km/hr = 66 km/hr.
| = |  |
66 x | 5 |  m/sec |
| 18 |
| = | |
55 | m/sec. |
| 3 |
 Time taken to pass the man = |
|
110 x | 3 | sec = 6 sec. |
| 55 |
Discussion:
35 comments Page 4 of 4.
Anjali said:
1 decade ago
As of the direction the relative speed would be 60+6=66. Convert it to m/sec as required to the answer. You will get 55/3 mtr/sec.
So, 55/3 = 110/t. T = 6 sec and done.
So, 55/3 = 110/t. T = 6 sec and done.
Buvana said:
1 decade ago
Please any one give the reason for not considering distance covered by man.
Buvana said:
1 decade ago
Please any one give the reason for not considering distance covered by man.
Mona said:
1 decade ago
In the question they did not mentioned that the whether the train is moving on platform are not. If they mentioned any pole are platform means we want to consider the distance of man moving in opposite direction. So I think we don't consider the distance.
Raju said:
1 decade ago
@Thili.
I agree with you.
The distance the man runs (X) towards train will be decrease the total distance, i.e 110-X mts.
Hence the time will decrease below 6 seconds.
Also since we have 2 variables distance traveled b the man towards train and the time taken for train to pass the man.
Can someone explain this solution clearly.
I agree with you.
The distance the man runs (X) towards train will be decrease the total distance, i.e 110-X mts.
Hence the time will decrease below 6 seconds.
Also since we have 2 variables distance traveled b the man towards train and the time taken for train to pass the man.
Can someone explain this solution clearly.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers