請問一個個體經濟觀念 - 經濟

By Mary
at 2007-02-14T12:31
at 2007-02-14T12:31
Table of Contents
Firm X's average total cost per month equals 5Q,where Q is the number of units of output produced per month.The marginal cost of the third unit
produced per month is ?
答案是30
我有個問題:
total cost=5Q^2
所以MC=10Q
如果帶入Q=3到MC-->MC=30得解
可是如果我想從總成本看
不就是5(3^2-2^2)=25嗎
請問問題出在哪??
照理說不是兩者應該相等嗎????
謝謝回答囉~
--
produced per month is ?
答案是30
我有個問題:
total cost=5Q^2
所以MC=10Q
如果帶入Q=3到MC-->MC=30得解
可是如果我想從總成本看
不就是5(3^2-2^2)=25嗎
請問問題出在哪??
照理說不是兩者應該相等嗎????
謝謝回答囉~
--
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經濟
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at 2007-02-17T14:45

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at 2007-02-19T09:33
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