Asked by Sammy
The speed of the current is 4kph. A boat travels 6km upstream in the same time it takes to travel 10km downstream. What is the spees of the boat in still water?
Answers
Answered by
bobpursley
distance=(current+boat)*time
Upstream:
6km=(B-4)t
Downstream
10km=(b+4)t
the times are identical, so
6/(B-4)=10/(B+4) or
6(B+4)=10(B-4)
solve for B..
4B=16
B=4km/hr
Upstream:
6km=(B-4)t
Downstream
10km=(b+4)t
the times are identical, so
6/(B-4)=10/(B+4) or
6(B+4)=10(B-4)
solve for B..
4B=16
B=4km/hr
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