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- Two trains are running at 40 km/hr and 20 km/hr respectively in the same direction.
Question 1:
Two trains are running at 40 km/hr and 20 km/hr respectively in the same direction. Fast train completely passes a man sitting in the slower train in 5 seconds.What is the length of the fast train?
A. 23 (2/9 ) m
B. 23 m
C. 27 (7/9 ) m
Feedback Relative speed = (40 - 20) km/hr = ( 20 x 5/18 ) m/sec = (50/9) m/sec
Therefore, Length of faster train = ( 50/9 x 5) m = 250/9 m = 27 (7/9 ) m.
Therefore, Length of faster train = ( 50/9 x 5) m = 250/9 m = 27 (7/9 ) m.
D. 29 m
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