21+50+15=86
) e* |0 z" o+ S# ~0 f" U5.39.217.76why 86...
# r3 K# x. G% N3 t) n公仔箱論壇becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21公仔箱論壇$ r3 ?1 G* H* I+ p
then he giv bck his fren 50
2 N o; Y1 E" p9 V) @1 z7 KTVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。and the shoes cost is 15
/ w& C$ g" |; g7 C$ Stvb now,tvbnow,bttvb公仔箱論壇; p- ]3 n& }) S6 g8 F! ^" I8 d
so total he loss is 86...
8 }7 G0 f0 K3 P- u6 h, `3 D公仔箱論壇公仔箱論壇' g* _2 P" s# B# _, I2 \0 p H
[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |