Put on your thinking cap

Posted by futari on 2010/8/25 1:02:41

For dinner, 123 and Gogogo both want to eat chicken. Neither girl has any medical problems or special dietary requirements. However, 123 had to eat the beef dish offered because she wasn't allowed to eat the chicken, since that's what Gogogo had eaten. There were plenty of the chicken dishes to go round, so, why was 123 denied her preferred dinner?