If variable cost rises from $60 to $100 as output increases from 15 to 20 units,the marginal cost of the twentieth unit is _____
A)$100.
B)$5.
C)$40.
D)$8.
E)$58.

Name: If variable cost rises from $60 to $100 as output increases from 15 to 20 units,the marginal cost of the twentieth unit is _____ A)$100. B)$5. C)$40. D)$8. E)$58.
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Question

Quizplus · Accepted Answer

Marginal cost = Change in total variable cost / Change in output = ($100 - $60) / (20 - 15) = $40 / 5 = $8.

If Variable Cost Rises from $60 to $100 as Output