Problem E

Letâ€™s Paint

Painters R Us has been given a large painting job. Initially, Jim started painting by himself. In \(15\) days, working \(9\) hours each day, he was able to complete \(\frac{3}{8}\) of the job. He decided to have Wanda join him for the remaining part of the job. Together they completed the job in another \(10\) days, each working \(9\) hours per day. If Wanda had originally done the job by herself, how many hours would it have taken her to finish the complete job?