Boats and Streams

- Boat speed = x, Stream speed = y, (where ( x > y )).

- Downstream (same direction):

D = x + y

- Upstream (opposite direction):

U = x - y

- Speed of boat in still water:

x = 1/2 x (D + U)

- Speed of stream:

y = 1/2(D - U)

- Conversion: km/h → m/s = multiply by 5/18.

Kalpavriksha Notes