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 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

3 Answers
Top Voted Recent Answer
1-3 of  3
3 Answers
Top Voted Recent Answer
  • a
    0
  • length of train =125 m
    time to pass a man=10 seconds
    the speed of the train calculated will be=(125/10)(metre/second);
    now by converting it into km/hr we divide speed by (5/18)
    speed of train=(125/10)*5/18=45 km/hr;

     
    -1
  • r speed of the train relative tio man = 125/10 m/sec.
                                                             = 25/2 m/sec
                                                             = (25/2)X(18/5) km/hr
                                                             = 45 km/hr 
    3
Async Other Related Discussions
icici bank
Practice Mock Test
icici bank
Take Mock Testforward arrow