stephenchw

the answer is B +2.公仔箱論壇5 Z6 {: u. V0 O( }: w% Z, k* U0 \5 r
let us assume that that person has $10.  he pays $8 for the chicken, so he has $2 with him. he then sold the chicken for $9, and he now has $11.  he pays $10 for the same chicken and has $1 left.  after selling the chicken for $11, he has $12 at the end.  therefore, he makes $2.