有3個人去camp....搵左間房要300蚊....每人出左100$....間房e家減價...只要250蚊..個老闆娘叫個伙記去比返50蚊佢地...但係個伙記自己拎左20蚊..之後每人比返10蚊佢地...佢地e家係咪每人出左90蚊ga???
但係90*3+20=290.....咁果10蚊去左邊
收錄日期: 2021-04-12 21:50:53
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070517000051KK02944