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

• Sunil
• 3177 दृश्य
• 3 उत्तर

• a

  • Madhuri
  • 08 अगस्त
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  0

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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 / 

  • Sahil
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  -1

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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 

  • Sunil
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  3

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