Show that at least ten of any 64 days chosen must fall on the same day of th
问题描述：
Show that at least ten of any 64 days chosen must fall on the same day of th
Show that at least ten of any 64 days chosen must fall on
the same day of the week
答
这句话的意思是,请证明任意选64天,就至少会有10天是在一个星期的同一天.可回答：任选连续的64天.一周有七天,无论第一天是周几,七天之后的第八天也是周几,同理,七的倍数之后的那一天也是周几,七乘以九等于六十三,无论...