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a man walk at a speed of 60 km per hour for 1 kilometre and 18 for next 1 kilometre along a straight line what is the average speed for the walk of two kilometre |
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Answer» AVERAGE SPEED=total distance/total time t1=d/v1=1/60 t2=d/v2=1/18 avg speed =2/1/60+1/18 =2*180/13 30km/h |
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