Preferred numbers are used to: / » Operations Management and Strategic Management solved MCQs / By admin Question: Preferred numbers are used to: A. To determine the number of varieties that are to be manufactured B. To the test the design of the product C. To ascertain the quality level of the product D. To evaluate the production cost. Answer» a. To determine the number of varieties that are to be manufactured Note: The above multiple-choice question is for all general and Competitive Exams in India.