[" 3.A sailor goes "8km" downstream in "40min" and comes tack in "1h" .Find the speed of sailor "],[" in still water and the speet of current."]

A sailor goes 8km downstream in 40 minutes and returns in 1 hours.Determine the speed of the sailor in still water and the speed of the current.

A sailor goes 8 km downstream in 40 minutes and returns in 1 hours. Determine the speed of the sailor in still water and the speed of the current.

Ravi can row downstream at 9 km/h and upstream at 5 km/h. Find the speed of Ravi in still water and speed of current.

A boat goes 20 km downstream in 1 h and the same distance upstream in 2h. The speed of the boat in still water is-