Question
If Gabriel and Ethan work together, they can complete a job in 12 days. If Gabriel and Ethan worked together for 9 days, followed by Ethan who worked alone for the next 21 days, they can finish off the job.
  1. How many days would Ethan need to complete the job alone? 
  2. How many days would Gabriel need to complete the job alone?
4 m
(a)

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(b)

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If Gabriel and Ethan work together, they can complete a job in 12 days. If Gabriel and Ethan worked together for 9 days, followed by Ethan who worked alone for the next 21 days, they can finish off the job.
  1. How many days would Ethan need to complete the job alone? 
  2. How many days would Gabriel need to complete the job alone?