Vishwanath
Monday, February 18, 2013
46.A train 150 m long is running with a apecd of 68 kmph. In what time will it pass a man who is running at 8 kmph in the same direction in which the train is going?
A. 6sec. B. 7sec.
C. 9sec. D. 11sec.
Answer:
Speed of the train relative to man =( 68 - 8 )
= 60 Kmph
= 60 x 5 / 18
=50/3 m/sec.
Time taken by it to cover 150 m at (50 /3)m/sec = (112 - 50)kmph
= (150 x 3/50)sec
= 9 sec.
Title : Trains Q46
Description : 46.A train 150 m long is running with a apecd of 68 kmph. In what time will it pass a man who is running at 8 kmph in the same direction in ...
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