A train 125 m long passes a man, running at 5 km/hr in the same direction in which the train is going, in 10 seconds. the speed of the train is:
a.45 km/hr
b.50 km/hr
c.54 km/hr
d.55 km/hr
Answers
Answered by
15
Speed of the train relative to man
=(125/10)m/sec
=(25/2)m/sec
=(25/2 × 18/5)
= 45 km/hr.
Let the speed of the train be x km/hr. Then, relative speed = (x - 5) km/hr.
=> x - 5 = 45 => x = 50 km/hr.
=(125/10)m/sec
=(25/2)m/sec
=(25/2 × 18/5)
= 45 km/hr.
Let the speed of the train be x km/hr. Then, relative speed = (x - 5) km/hr.
=> x - 5 = 45 => x = 50 km/hr.
Answered by
7
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Option.B
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The answer of u r question is..✌️✌️
Option.B
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