21+50+15=86
7 }2 ~" B7 A; M7 ?( p' S& E5.39.217.76why 86...tvb now,tvbnow,bttvb7 J4 [& p! J' e, P& H. G' ~3 b6 f3 H
becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21& B5 [' e) s" Y* P1 j1 a" [* S$ _
then he giv bck his fren 505.39.217.763 o1 k c/ u/ K; F Y f8 \) t
and the shoes cost is 15
0 b7 ?; B6 D6 W4 f+ vTVBNOW 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。公仔箱論壇6 H& B- f- G; q8 F
so total he loss is 86...
( x2 m) \( ?6 j5.39.217.76
2 M2 e* @# T6 F$ U9 F6 q/ w公仔箱論壇[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |