[課業] 財政學問題請教
施敏財政學公共財理論這章
範例12的考古題:http://imgur.com/j8W2cZ3

想知道為什麼第3題甲的利益是900呢?
因為有查到網路上公職王的詳解是100,
因為甲就是少了最適數量5單位要付的代價100,
查了勘誤也沒寫到,
想確認是解答印錯,還是另有解法呢?
謝謝!
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※ 編輯: butterfly113 (140.112.220.86), 10/21/2015 22:39:16
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