Question
If Carl and Howard work together, they can complete a job in 12 days. If Carl and Howard worked together for 8 days, followed by Howard who worked alone for the next 20 days, they can finish off the job.
  1. How many days would Howard need to complete the job alone? 
  2. How many days would Carl need to complete the job alone?
4 m
(a)

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(b)

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If Carl and Howard work together, they can complete a job in 12 days. If Carl and Howard worked together for 8 days, followed by Howard who worked alone for the next 20 days, they can finish off the job.
  1. How many days would Howard need to complete the job alone? 
  2. How many days would Carl need to complete the job alone?