21+50+15=86
0 P0 C" K6 F* ]+ }- v5.39.217.76why 86...3 a. V8 P3 d$ L! }0 K8 j
becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21
$ L5 J* ~% Q u# Z) g( NTVBNOW 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
8 H* B0 J+ E6 r7 Q4 y5.39.217.76and the shoes cost is 15/ W. `* a+ b, R' z
' M% [" N7 U. 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。so total he loss is 86...
. i1 k9 A; b- n; t( `5.39.217.76公仔箱論壇% e. o4 J# g+ N' h
[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |