If a train cover half pf the distance with the speed of 40km/h and half of the speed with 60km/h . find the average speed of train
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avg speed = total dist /total time
= 2x / (x/40 + x/60)
= 2×40×60/ (40+60)
= 2×2400/100
= 48 km/hr
= 2x / (x/40 + x/60)
= 2×40×60/ (40+60)
= 2×2400/100
= 48 km/hr
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