Question
P6.SP.TL.18012227-A1
If Oscar and David work together, they can complete a job in 12 days. If Oscar and David worked together for 9 days, followed by David who worked alone for the next 15 days, they can finish off the job.
  1. How many days would David need to complete the job alone? 
  2. How many days would Oscar need to complete the job alone?
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Primary 6 SPEED P6.SP.TL.18012227

03 May 2024, 03:08 AM

If Oscar and David work together, they can complete a job in 12 days. If Oscar and David worked together for 9 days, followed by David who worked alone for the next 15 days, they can finish off the job.
  1. How many days would David need to complete the job alone? 
  2. How many days would Oscar need to complete the job alone?
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