SOLUTION: Flora can finish her chores in 4 hours. One week, after Flora worked alone for 1 h, she was joined by her younger sister Fiona and they finished the job in 2 h. How long would it h

Algebra ->  Rate-of-work-word-problems -> SOLUTION: Flora can finish her chores in 4 hours. One week, after Flora worked alone for 1 h, she was joined by her younger sister Fiona and they finished the job in 2 h. How long would it h      Log On


   

Question 899040: Flora can finish her chores in 4 hours. One week, after Flora worked alone for 1 h, she was joined by her younger sister Fiona and they finished the job in 2 h. How long would it have taken Fiona working alone?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi

to finish job alone would take Flora 3hrs

1%2F3+%2B+1%2Fx+=+1%2F2 |Multiplying thru by 6x so as all denominators = 1

  2x + 6 = 3x

       6 = x

How long would it have taken Fiona working alone?  6hr