SOLUTION: IT took 3 hours to row a boat 18 km against the current. The return trip with the current took1 1/2 hours. Find the speed of the rowboat in still water.

Question 581785: IT took 3 hours to row a boat 18 km against the current. The return trip with the current took1 1/2 hours. Find the speed of the rowboat in still water.
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
IT took 3 hours to row a boat 18 km against the current. The return trip with the current took1 1/2 hours. Find the speed of the rowboat in still water.
-------------
18/3 = 6 km/hr
18/1.5 = 12 km/hr
--------------
The boat's speed is the avg = (6 + 12)/2
= 9 km/hr

RELATED QUESTIONS
It took 3 hours to row a boat 18 km against the current, The return trip with the... (answered by ankor@dixie-net.com)

It took three hours to row a boat 18 km against the current. The return trip with the... (answered by ptaylor)

It took 3 hours to row a boat 18 km against the current. The return trip with the current (answered by Paul)

It took 3 hours to row a boat 18 km against the current. The return trip with the current (answered by Alan3354)

it took 3 hours to row a boat 18 km against the current. The return trip with the current (answered by richwmiller)

A boat took 3 hours to travel 24 km with the current. On the return trip, the boat took 5 (answered by ankor@dixie-net.com)

It took 3 hours to row a boat 18 km against the current. The return trip with the... (answered by Alan3354)

A fishing boat traveled 3 hours against a 6 km/hr current. The return trip took only 2... (answered by stanbon)

a motor boat toook 3 hours to make a downstream trip with a 6 km/h current the return... (answered by sophiainman,stanbon)