a man walks at 1 m per second for 16 minutes you take rest for 20 minutes and then walk with the speed of 1 metre per second for 16 minutes find its average speed
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average speed = total distance / total time
total distance = 1*16*60 + 1*16*60 = 1920 m
total time = (16+20+16)*60 = 3120m/s
average speed = 1920/3120 = 0.615m/s
total distance = 1*16*60 + 1*16*60 = 1920 m
total time = (16+20+16)*60 = 3120m/s
average speed = 1920/3120 = 0.615m/s
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