If the total product of two workers is 80 and the total product of 3 workers is 90 then the average product of the third worker is ________ and the marginal product of the third worker is _________?
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Answer: D. 30; 10
Explanation
Average product is calculated as total product divided by the number of workers. Marginal product is calculated as the change in total product when adding a worker. Ninety divided by three gives thirty, and ninety minus eighty gives ten. Production theory distinguishes clearly between average productivity and marginal productivity. Marginal product measures the exact contribution of the last hired worker. Diminishing returns set in when marginal product falls below average product.
Factory managers track worker productivity metrics to optimize staffing levels. Labor cost minimization requires understanding marginal productivity curves. Economic output models rely on accurate calculations of worker efficiency. Option A miscalculates both metrics using arbitrary multiplication errors. Option B reverses the calculated marginal and average values incorrectly. Option C miscalculates the marginal product by dividing instead of subtracting.
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