問題詳情
1. If I get 10 units of pleasure from my first ice cream cone and 2 less units than before from eachsucceeding cone, I will buy ____ cones and gain _____ units of consumer surplus if the price of acone is equal to 5 units of pleasure.
(A) 4； 28
(B) 6； 30
(C) 2； 18
(D) 3； 9
參考答案
答案：[無官方正解]
難度：計算中-1
書單：沒有書單，新增