SOLUTION: John and his father can do a job in 4 1/2 days. After working 3 days, the father fell ill and John finished the task in 6 days. Working alone, in how many days did each of them fin

Question 909816: John and his father can do a job in 4 1/2 days. After working 3 days, the father fell ill and John finished the task in 6 days. Working alone, in how many days did each of them finish the entire task?
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
2/3 of job left undone
x = 9hr, John Alone

|Multiplying thru by 9x so as all denominators = 1
x + 9 = 2x
9hr = x, His Father alone
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