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李叔叔和张伯伯家一共养了106只鸡,李叔叔家的鸡中有38是公鸡,张伯伯家的鸡有711是母鸡,他们两家一共养 - 22问答网

李叔叔和张伯伯家一共养了106只鸡,李叔叔家的鸡中有38是公鸡,张伯伯家的鸡有711是母鸡,他们两家一共养

李叔叔和张伯伯家一共养了106只鸡,李叔叔家的鸡中有38是公鸡,张伯伯家的鸡有711是母鸡,他们两家一共养了多少只母鸡?

106=40+66,
40×(1-
3
8
)+66×
7
11

=40×
5
8
+42,
=25+42,
=67(只);
答:他们两家一共养了67只母鸡.
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