SOLUTION: A boat takes 6 hrs to travel 8 km upstream and 32 km downstreams and it takes 7 hrs to travel 20 km upstream and 16 km downztream. Find the speed of boat in still water and speed o
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Question 1062938: A boat takes 6 hrs to travel 8 km upstream and 32 km downstreams and it takes 7 hrs to travel 20 km upstream and 16 km downztream. Find the speed of boat in still water and speed of stream
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = the speed of the boat in still water in km/hr
Let = the speed of the current in km/hr
---------------------------------------------------
Equation for traveling upsteam
(1)
Equation for traveling downstream:
(2)
------------------------------------
(1)
(1)
and
(2)
(2)
-------------------------
add (1) and (2)
(1)
(2)
--------------------------
km/hr
and
(1)
(1)
(1)
(1)
(1) km/hr
-----------------------
check answer
(1)
(1)
(1)
(1)
and
(2)
(2)
(2)
(2)
OK
--------------------------
Is the 2nd part a different boat? Anyway, you
solve it the same way I just did. check the math.
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