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2016-05-18T12:33:32+05:30

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Time taken=20x60=1200s
Dist.=15x1000=15000m
Speed=15000/1200=150/12=12.5 m/s
Speed= 12.5 m/s=12.5x18/5 km/h
          =2.5x18 Km/h
          =45 Km/h
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