Question
If Billy and Seth work together, they can complete a job in 12 days. If Billy and Seth worked together for 8 days, followed by Seth who worked alone for the next 16 days, they can finish off the job.
  1. How many days would Seth need to complete the job alone? 
  2. How many days would Billy need to complete the job alone?
4 m
(a)

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(b)

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If Billy and Seth work together, they can complete a job in 12 days. If Billy and Seth worked together for 8 days, followed by Seth who worked alone for the next 16 days, they can finish off the job.
  1. How many days would Seth need to complete the job alone? 
  2. How many days would Billy need to complete the job alone?