7) A train travels a distance with a speed of 30 km/h and returns with a speed of 50 km/h. Calculate the average speed of the train.
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average speed=2xy/x+y
=2×30×50/30+50
=3000/80
=37.5km/h
husenibohari:
but
20
oh sorry
I thought it is 20
which is take 20
in your ans
ok
from u
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