Posted by **Anonymous** on Sunday, April 3, 2011 at 3:06pm.

a boat travels 4 km upstream and 4 km back. the time for the round trip is 9 hrs. the speed of the stream is 2 km/hr. What is the speed of the boaty in still water?

Thursday

March 23, 2017
Posted by **Anonymous** on Sunday, April 3, 2011 at 3:06pm.

a boat travels 4 km upstream and 4 km back. the time for the round trip is 9 hrs. the speed of the stream is 2 km/hr. What is the speed of the boaty in still water?

Search