Aptitude - Problems on Trains - Discussion
Discussion Forum : Problems on Trains - General Questions (Q.No. 21)
21.
How many seconds will a 500 metre long train take to cross a man walking with a speed of 3 km/hr in the direction of the moving train if the speed of the train is 63 km/hr?
Answer: Option
Explanation:
| Speed of the train relative to man | = (63 - 3) km/hr | |||||||
| = 60 km/hr | ||||||||
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 Time taken to pass the man |
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| = 30 sec. |
Discussion:
44 comments Page 3 of 5.
Manju said:
9 years ago
Why 50/3 is taken as 3/50?
Niyati said:
10 years ago
Why take 5/18?
Vipul said:
10 years ago
Which is this a-b/u-v formula? Please explain.
Saurav dey said:
10 years ago
Distance/speed.
Neha said:
10 years ago
What is a time formula?
Vinaya said:
1 decade ago
I didn't get please explain me in detail with steps.
Shakeena said:
1 decade ago
Both are in same direction. So we have to take 63-3=60.
GEETIKA SRIVASTAVA said:
1 decade ago
Why not 63+3? Please anyone explain.
Nisar said:
1 decade ago
Speed of train in m/s = 17.5.
Time taken to cross a man = x.
Speed of man in m/s = 0.833.
17.5*x = 500 + 0.833*x.
16.66 x = 500.
x = 30.00sec.
Time taken to cross a man = x.
Speed of man in m/s = 0.833.
17.5*x = 500 + 0.833*x.
16.66 x = 500.
x = 30.00sec.
Lavanya said:
1 decade ago
When two trains are travelling in the same direction and one passes the other, why is their relative speed found out by subtracting their speeds and by not adding them up?
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