Question 357292
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Hi,
*Note: takes 2/3 of 6hrs or 4hrs to paint the house together.
Let x represenst the time it takes for Karen to paint the house alone
{{{(1/6) + (1/x) = (1/4)}}}
Multiplying thru with 24x 
4x + 24 = 6x
24 = 2x
12 = x
Takes Karen 12 hrs to paint the house alone