A man can swim in still water at a rate of 4 km .the width of the river is 1 km.how long will he take to cross the river straight
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d=1km
s=4 kmph
t=d/s=1/4 hr = 1/4*60 minÂ
=15 min
s=4 kmph
t=d/s=1/4 hr = 1/4*60 minÂ
=15 min
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