(b) A bus travels a distance of 120 km with a speed of 40 km/h and returns with a speed of
30 km/h. Calculate the average speed for the entire journey.
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The formulae should be used in this
2xy/x+y
2*40*30/40+30
2*1200/70
2400/70
34.28m/s
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pinky221122:
but I am happy I passed
my total percentage is 74%
just because हिंदी it went low
and Arabic is not counted
answer plz
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