 
<translate> Yawan hanyoyi na zaɓar mutane 3 daga cikin mutane 10 = 10C3 A cikin mambobi uku George zai kasance a cikin tawagar. A wannan matakin muna da gurbi don ƙarin mambobi 2 kuma mambobi 9 suna samuwa. Lina ba za ta iya kasancewa a cikin tawagar ba. Don haka dole ne a zaɓi mambobi 2 kuma adadin membobin da ke akwai = 9 - Nina = 8 Yawan hanyoyin da za a samar da ƙungiyar mutum 3 wanda ya haɗa da George kuma ya cire Nina = 8C2 Yiwuwa = 8C2/10C3 = 28/120 Amsar ƙarshe: (C). <eng> Number of ways of selecting 3 people out of 10 people = 10C3
In the three members George will always be there in the team. At this step we have vacancy for 2 more members and 9 members are available. Lina cannot be there in the team. So 2 members have to be selected and the number of available members = 9 - Nina = 8
Number of ways to form a 3 member team that includes George and excludes Nina = 8C2
Probability = 8C2/10C3 = 28/120
The final answer: (C). 