21+50+15=86TVBNOW 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。, }3 [; z, p$ ~1 E' P! l, v9 N
why 86...$ H7 [ o% L: ^8 g
becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21
% h1 p+ `- P- p5 h$ @7 K' N. W4 e8 W4 l' [TVBNOW 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。then he giv bck his fren 50
( T+ a( ]- P9 n1 ^2 W- Jand the shoes cost is 15
9 t6 H, r' j! @& E; x1 mtvb now,tvbnow,bttvb: j- @% O4 P$ l/ v X0 Q: l. d
so total he loss is 86..., Z; ~' V e" K
+ E$ }9 L! I# k/ U+ [( \: o[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |