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 ?
Answers
A) 25 B) 30 C) 40 D) 45 E) 55
Solution   Speed of train relative to man =(63-3)km/hr=60km/hr   =(60x5/18)m/sec =50/3 m/sec   Time taken to pass the man =(500x3/50)sec =30sec   Answer 30
<result>B</result>
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 ?