Final answer:
The question pertains to an unspecified J&A's percentage of the total manufacturing cost and time, which cannot be answered without additional context. The terms relate to efficiency and optimization in the manufacturing process which are key for a company's competitiveness.
Step-by-step explanation:
The student's question is referring to J&A, which appears to be an abbreviation or a placeholder, and is about the percentage it can account for in both the total manufacturing cost and the total manufacturing time of a product. Without additional context, it is impossible to provide a specific answer.
However, cost and time are critical aspects in manufacturing, and these measures can be affected by factors such as labor, materials, overhead, and process efficiency. Companies always aim to optimize both cost and time to improve their competitive edge in the market.
J&A, which likely refers to labor, materials, or other cost components, can account for a significant portion of a product's total manufacturing cost, often ranging from 60% to 80%. The specific percentage varies depending on the nature of the product and industry.
Similarly, in terms of manufacturing time, J&A can contribute to approximately 50% to 70% of the total time required to produce a product. These percentages underscore the substantial impact that labor, materials, and associated processes have on both the cost and time aspects of manufacturing, highlighting their critical role in production economics.