A boat covers 48 km upstream and 72 km downstream in 12 hours while it covers 72 km upstream and 48 km downstream in 13 hours the speed of stream is:

A boat covers 12km upstream and 18km downstream in 3 hours,while it covers 36km upstream and 24km downstream in n6(1)/(2) hours.find the speed of the current.

A boat covers 24 km. upstream and 36 km. down stream in 24 hours. While it covers 36 km. upstream and 24 km. downstream in 21 hours. What is the difference between the speed of boate and that of current.

A boat covers 32km upstream and 36km downstream in 7 hours.Also,it covers 40km upstream and 48km downstream in 9 hours. Find the speed of the boat in still water and that of the stream.

A boat covers 32 km upstream and 36 km downstream in 7 hours . In 9 hours it cancover 40 km upstream and 48 km downstream.find the speed of the stream and that of the boat in still water .

A boat covers 24 km upstream and 36 km downstream in 6h , while it covers 36 upstream and 24 km downstream in 6 (1 )/(2) . The speed of the current is