Q29
june 25, 1982, fell on a Friday, on which day of a week june 25, 1987 fall? (1984 is a leap year)
答案是Tuesday, 可我认为应该是Thursday
Thursday 是对的.
(以上是引用)
这道题答案到底是几?
june 25,1982----june 25,1987 是365X5+1+1天(有一天是闰年),该数除以7,246余5,第7天是周四,周四以后还有5天(注意,不是从周四开始,是从周四的下一天),结果是周二。
不知我的算法对不对,请执教。 |