it takes p 1 hour to row to a place and to come back. if the river is running at 2.4 km/put and p has a speed of 12 km/ phr in still water. what distance is the place frm p starting point.
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Answered by
0
Answer:
i don't know sorry..............xd
Answered by
1
Answer:
5.76km
Step-by-step explanation:
let x=2.4km/hr and y=12km/hr
then ,
speed of boat in upstream=(12-2.4)=9.6km/hr
speed of boat in downstream=(12+2.4)=14.4km/hr
also t=1hr
so t=d/speed upstream+d/speed downstream
1=d/9.6+d/14.4
9.6*14.4=14.4d+9.6d
138.24=24d
d=5.76km
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