a bus travelling the first one third distance at a speed of 10km/h,the next one fourth at 20km/h and the remaining at 40 km/h.the average speed of the bus is nearly
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18.18 km/h should be the average speed of the bus
sejju:
tnq
but how solve this question?
velocity = total distance/ total time
total distance = 1
ok
and total time = [1/(3*10)] + [1/(4*20)] + [0.41/40]
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