21+50+15=86
, }3 G' Y$ R3 M5.39.217.76why 86...5.39.217.76/ D& H5 q6 A$ ~7 y
becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21tvb now,tvbnow,bttvb- e9 S. N# R# Z! v& [
then he giv bck his fren 50tvb now,tvbnow,bttvb9 O4 C3 D/ C/ Q& R6 m3 g, m* W' j
and the shoes cost is 15
+ X2 s. v* H: e0 V! j7 t2 j4 @公仔箱論壇
& Q9 s# }: ]) w: k7 Iso total he loss is 86...
1 R& }6 i1 O4 s7 ]
: R% ~/ V" w/ h% j1 [) 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。[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |