Case 1: The number of teams with 2 members can be formed with Q as a memberOut of the 2 members, one member is Q and another member can be selected from the remaining three members.The number of teams can be formed \( = {3_{{C_1}}} = 3\)Case 2: The number of teams with 3 members can be formed with Q as a memberOut of the 3 members, one member is Q and another 2 members can be selected from the remaining three members.The number of teams can be formed \( = {3_{{C_2}}} = 3\)Case 3: The number of teams with 4 members can be formed with Q as a memberOut of the 4 members, one member is Q and another 3 members can be selected from the remaining three members.The number of teams can be formed \( = {3_{{C_3}}} = 1\)Now, the total number of teams can be formed = 3 + 3 + 1 = 7