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A boat covers a certain distance downstream in 2 hours.it covers the same distance upstream in 2.5 hours.
The speed of the boat i 18 km/hr.
Find the speed of the water. Also find the distance covered by the boat
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Base equations are
= 2 (1) (the time downstream)
= 2.5 (2) (the time upstream).
Hence, 2*(18+w) = 2.5*(18-w).
It is your equation to find w, the speed of the current, in .
When you find w, calculate D, the distance, from any equation (1) or (2).
For various problems on floating upstream and downstream the river see the lessons
- Wind and Current problems
- More problems on upstream and downstream round trips
- Selected problems from the archive on the boat floating Upstream and Downstream
in this site.