问题标题:
24号考试~SATOG数学P981第16题!TOcelebrateacolleaguegratuation,themcowworkersinanofficeagreedtocontributeequallytoacaterredlunchthatcostsatotalofydollars.ifpofthecowwokersfailtocontribute,whichofthefollowing
问题描述:
24号考试~SATOG数学P981第16题!
TOcelebrateacolleaguegratuation,themcowworkersinanofficeagreedtocontributeequallytoacaterredlunchthatcostsatotalofydollars.ifpofthecowwokersfailtocontribute,whichofthefollowingrepresentstheadditionalamount,indollars,thateachoftheremainingcowworkersmustcontributetopayforthelunch?
Aym
By(m-p)
Cpy(m-p)
Dy(m-p)m
Epym(m-p)
戴同回答:
选E,原来每个人要付y/m元,后来每人要付y/(m-p)元,后面的减去前面的,通分,变成答案E
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