21+50+15=86tvb now,tvbnow,bttvb4 |2 \5 v* |, d7 p
why 86..." W4 ]1 j( d4 t) _* a/ K W
becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21
: q1 {2 f0 i9 UTVBNOW 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 Y8 y$ [& I; R- B; h0 Z: H9 ~8 v9 C5.39.217.76and the shoes cost is 15
2 o+ c: Z* |9 R0 ITVBNOW 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。% r! R( r" i* c( ]' ~
so total he loss is 86...5.39.217.769 [& O Y, T' F) n5 m; V
+ V6 G8 m! b9 r& a- G9 s/ x7 g. H; Z5.39.217.76[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |