Round trip time of 110 meters in a river is 16 min. the velocity of stream is 3m/min. what is the velocity of the person in the still water?  Choose the correct choice from the following choices
A) 6
B) 7
C) 8
D) 9
E) 10
let speed of boat be x.hence upstream=x-3 and downstream=x+3..so we have   55/x+3 + 55/x-3 = 16...solving we get x=8   ANSWER:8
<result>C</result>
Round trip time of 110 meters in a river is 16 min. the velocity of stream is 3m/min. what is the velocity of the person in the still water?