A table displays production data for four manufacturing lines (Line P, Q, R, S), including their daily output, average defect rate (as a percentage of output), and daily operating cost. Which line has the lowest cost per non-defective unit produced?

The correct answer to the question "A table displays production data for four manufacturing lines (Line P, Q, R, S), including their daily output, average defect rate (as a percentage of output), and daily operating cost. Which line has the lowest cost per non-defective unit produced?" is Option B: Line Q.

The other options — A) Line P, C) Line R, D) Line S — are incorrect for this GMAT Exam Prep question. As explained above: To find the lowest cost per non-defective unit, calculate (Daily Operating Cost) / (Daily Output * (1 - Defect Rate)) for each line. The line with the lowest resulting value is the correct answer. Th…