SOLUTION: Ben owns a house on a river. The river flows at 3 mph. Ben decides to start rowing downstream, with a current, at noon. He wants to return to his house at 5 P.M. At what time shoul
Algebra.Com
Question 193696: Ben owns a house on a river. The river flows at 3 mph. Ben decides to start rowing downstream, with a current, at noon. He wants to return to his house at 5 P.M. At what time should Ben turn around and row home if he normally rows 5 mph in water that has no current?
Your help is appreciated.
Thanks..
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Ben owns a house on a river. The river flows at 3 mph. Ben decides to start rowing downstream, with a current, at noon. He wants to return to his house at 5 P.M. At what time should Ben turn around and row home if he normally rows 5 mph in water that has no current?
---------------------------------
Roundtrip DATA:
time = 5 hrs ; average rate = 5 mph ; distance = rt = 25 miles
--------------------------------
Downstream DATA:
distance = 12.5 miles ; rate = 8 mph ; time = d/r = 12.5/8 = 1.5625 hrs
----------------
0.5625*60 min = 33 min 45 sec
-----------------------------------
He should turn around at 1:33 + 45 sec.
============================================
Cheers,
Stan H.
RELATED QUESTIONS
Mr. Turner has a motorboat that can travel 14 mph in still water. He wishes to take a... (answered by ankor@dixie-net.com)
Brian decides to start training for swimming in a river. The current in the river is... (answered by jim_thompson5910)
A girl rows a boat upstream on a river for one mile. She passes a hat floating in the... (answered by Wooh39)
a grain barge travels on a river from point a to point b loading and unloading grIn. the... (answered by ankor@dixie-net.com)
On a weekend outing, charles rents a motorboat for 10 hours to travel down the river and... (answered by ewatrrr)
A girl rows upstream in the river that flows at the rate of 3 mph. It takes her 2 hours... (answered by stanbon)
On a weekend outing, Manuel rents a motorboat for 6hrs to travel down the river and back. (answered by w_parminder)
On a weekend outing, Charles rents a motorboat for 10 hours to travel down the river and... (answered by mananth)
On a weekend outing, Carlos rents a motorboat for 10 hours to travel down the... (answered by Theo)