a boat covers 16 km in 2 hours downstream and takes 4 hours to cover the same distance upstream. how long will it take to cover 80 km in still water.
pls say the correct answer with explanation
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Answer:
speed of boat =6 km/hr
speed of stream=2 km/hr
Step-by-step explanation:
Downstream=16/2
=8 km/hr
Upstream=16/4
=4 km/hr
speed of boat =(downstream+upstream) /2
=(8+4)/2
=12/2
=6km/hr
speed of stream=(dowmstream -upstream) /2
=(8-4)/2
=4/2
=2km/hr
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