SOLUTION: Ken and Ted can produce 1 chair in 3 hours working together at their respective constant rates. If Ken doubles his speed, then two of them could produce 1 chair in 2 hours working

Question 1090882: Ken and Ted can produce 1 chair in 3 hours working together at their respective constant rates. If Ken doubles his speed, then two of them could produce 1 chair in 2 hours working together at their respective rates. How many hours does it currently take Ken to produce 1 chair on his own?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = Ken's rate in chairs/hr
Let = Ted's rate in chairs/hr
-------------------------------------
Add their rate of making chairs to get their
rate working together
(1)
(2)
----------------------------
(1)
(2)
-----------------------------
Subtract (1) from (2)

Ken can make 1 chair in 6 hrs
------------------------------
check:
(1)
(1)
(1)
and
(2)
(2)
(2)
(2)
OK

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