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
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- 08 Aug
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length of train =125 mbr /time to pass a man=10 secondsbr /the speed of the train calculated will be=(125/10)(metre/second);br /now by converting it into km/hr we divide speed by (5/18)br /speed of train=(125/10)*5/18=45 km/hr;br /br /
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- 08 Jul
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r speed of the train relative tio man = 125/10 m/sec.br / = 25/2 m/secbr / = (25/2)X(18/5) km/hrbr / = 45 km/hr
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- 08 Jul
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