A subdivision is planned for forty houses, each with its own in-ground swimming pool. A contractor estimates it will take him 30 hours to build the first pool and that there is a 90% learning curve associated with this process.
The first three rooms took a four-person crew a total of 9 hours to paint. If the learning curve rate is 85%, how long will it take them to paint all 20 rooms in stately Wayne manor?
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