In a certain time period, a ship covers a certain distance upstream or it can also cover 5 times the distance downstream. For a given current speed of 5 km/h, find the speed of ship in the still water.
1
25/2 km/h
2
22 km/h
3
15/2 km/h
4
19 km/h
In a certain time period, a ship covers a certain distance upstream or it can also cover 5 times the distance downstream. For a given current speed of 5 km/h, find the speed of ship in the still water.