A bus covers 160 km at a speed of 40 km/h and the next 120 km at a speed of 60 km/h .Find his average speed.(with statements)
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Average speed = (total distance/total time)
total distance = 160+120 = 280
time taken to cover 160 km at 40 km/h is 160/40 = 4 hrs
time taken to cover the next 120 km at 60 km/h is 120/60 = 2 hrs
total time = 4+2 = 6
Now, average speed = 280/6 = 46.66 km/h
total distance = 160+120 = 280
time taken to cover 160 km at 40 km/h is 160/40 = 4 hrs
time taken to cover the next 120 km at 60 km/h is 120/60 = 2 hrs
total time = 4+2 = 6
Now, average speed = 280/6 = 46.66 km/h
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