[問題]請教一題計量,謝謝!

[張惠菁]

A certain holiday is always on the fourth Tuesday of Month X. If Month X has 30 days, on how many different dates of Month X can the holiday fall?
0 FOUR
0 Five
0 Six
0 Swven
0 Eight

[devilangel]

A certain holiday is always on the fourth Tuesday of Month X. If Month X has 30 days, on how many different dates of Month X can the holiday fall?
0 FOUR
0 Five
0 Six
0 Swven
0 Eight

如果X月一號是禮拜三 則第四個禮拜二是28號
如果X月一號是禮拜四 則第四個禮拜二是27號
如果X月一號是禮拜五 則第四個禮拜二是26號
如果X月一號是禮拜六 則第四個禮拜二是25號
如果X月一號是禮拜日 則第四個禮拜二是24號
如果X月一號是禮拜一 則第四個禮拜二是23號
如果X月一號是禮拜二 則第四個禮拜二是22號

其他的話你以此類推 都會重覆
所以只有這七種可能 答案就是(D)囉~

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大家幫我看一下對不對阿 >"<