Question:
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?
A. 25
B. 30
C. 40
D. 45
Answer: B) 30
Explanation:
Speed of the train relative to man
= (63 - 3) km/hr
= 60 km/hr
= 60 * 5/18) m/sec
= 50/3 m/sec
Time taken to pass the man = 500* (3/50) sec
= 30 sec.
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?
A. 25
B. 30
C. 40
D. 45
Answer: B) 30
Explanation:
Speed of the train relative to man
= (63 - 3) km/hr
= 60 km/hr
= 60 * 5/18) m/sec
= 50/3 m/sec
Time taken to pass the man = 500* (3/50) sec
= 30 sec.
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