Question
If Luke and Glen work together, they can complete a job in 12 days. If Luke and Glen worked together for 6 days, followed by Glen who worked alone for the next 15 days, they can finish off the job.
  1. How many days would Glen need to complete the job alone? 
  2. How many days would Luke need to complete the job alone?
4 m
(a)

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(b)

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If Luke and Glen work together, they can complete a job in 12 days. If Luke and Glen worked together for 6 days, followed by Glen who worked alone for the next 15 days, they can finish off the job.
  1. How many days would Glen need to complete the job alone? 
  2. How many days would Luke need to complete the job alone?