a man riding a bicycle covers a distance of 60 km in the direction of wind and comes back to his original place in 8 hours. If the speed of the wind is 10 km/hr find the speed of the bicycle
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speed of bicycle should be 20 kmph.
aginst the current effective spd will be 10 kmph, so it'll take 6 hr to cover 60 km.
with the wind, effective spd will be 30 kmph. so it'll take 2 hr to go 60 km.
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