SOLUTION: A boat is rowed 10miles downstream in 2 hours. Then rowed 10 miles against current in 2.5 hours. What is the rate of the current?
Algebra.Com
Question 715950: A boat is rowed 10miles downstream in 2 hours. Then rowed 10 miles against current in 2.5 hours. What is the rate of the current?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
A boat is rowed 10miles downstream in 2 hours. Then rowed 10 miles against current in 2.5 hours. What is the rate of the current?
----
Down rate = 10 miles/2 hrs = 5 mph
----
Up rate = 10 miles/2.5 hrs = 4 mph
======
b + c = 5 mph
b - c = 4 mph
------
2b = 9
b = 4.5 mph (speed of the boat in still water)
-----
Solve for "c":
b + c = 5
4.5 + c = 5
c = 0.5 mph (speed of the current)
====================================
Cheers,
Stan H.
====================
RELATED QUESTIONS
A boat is rowed 10 miles downstream in two hours, then rowed the same distance
upstream... (answered by greenestamps)
A boat's crew rowed 12 miles downstream, with the current, in 2 hours. The return trip... (answered by Alan3354)
a boat crew rowed 20 miles downstream with the current in 2 hours. the return trip... (answered by Alan3354)
A boat'screw rowed 20 miles downstream, with the current, in 2 hours. The return... (answered by mananth)
a camper rowed 25 miles down a river and then rowed back to the campsite in a total of 8... (answered by ikleyn)
a boat crew rowed 16 miles downstream with the current in 2 hours . the return trip... (answered by checkley77)
A crew rowing with the current rowed 11 mi in 2 hours. Against the current, the crew... (answered by flame8855)
A man rowed ten miles downstream in one hour and 15 mins. The return trip took four... (answered by ewatrrr)
a boats crew rowed 18 miles downstream with the current in 2 hrs the return trip upstream (answered by mananth)