Answer: Annette will take 6 hours to do the entire job alone.
Step-by-step explanation:
Given: Time taken by Kelly to do of job = 2 hours
i.e. Time for complete job done alone by Kelly =
Rest of work = of the job
of the complete job done by both Kelly and Annette in 3 hours
Time would be taken by then to do entire job together =
Let t be the time taken by Annette to do job alone.
Then, as per situation
hence, Annette will take 6 hours to do the entire job alone.