问题标题:
求助一道GRE数学题!Inagroupof100students,morestudentsareontheFencingteamthanaremembersoftheFrenchclub.If70areinthecluband20areneitherontheteamnorintheclub,what,istheminimumnumberofstudentswhocould,b
问题描述:
求助一道GRE数学题!
Inagroupof100students,morestudentsareontheFencingteamthanaremembersoftheFrenchclub.If70areinthecluband20areneitherontheteamnorintheclub,what,istheminimumnumberofstudentswhocould,bebothontheteamandintheclub?
A10B49C50D60E61
求解析!
盛琦回答:
100个学生,在team的比在club的多,现在知道70个在club,20个既不在team也不在club,问最少多少人既在team也在club.1、因为有20个什么都没参加,所以参加了至少一个队伍的有80个.2、因为在team的比在club的多,所以在team...
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