The first three rooms took The Painter a total of 9 hours to paint. If the learning curve rate is 85%, how long will it take The Painter to paint all 20 rooms in Stately Wayne Manor?
A)less than 20 hours
B)between 20 and 30 hours
C)between 31 and 40 hours
D)more than 40 hours

Question

Quizplus · Accepted Answer

The learning curve rate of 85% implies that for each new room painted, the time taken to paint it is only 85% of the time taken to paint the previous room. This means the time taken to paint each subsequent room decreases at a rate of 85%. Given that the first three rooms took a total of 9 hours, the average time per room is 3 hours. However, due to the learning curve, each subsequent room will take progressively less time. Calculating the exact total time requires applying the learning curve formula across all 20 rooms, which results in a sum that exceeds 40 hours, as the decrease in time per room slows down but does not eliminate the time required to paint each room entirely.

The First Three Rooms Took the Painter a Total of 9