Suppose there are 14 children trying to form two teams with seven children each. Andrew, Beth, and Charlie are siblings and are part of the group. They demand to be on the same team as each other. How many ways can we split the group of 14 children into two-teams of seven, insuring that Andrew, Beth, and Charlie are on the same team? Solution given 14 children, (11c4 * 3c3)/ (14c7) * 11c7 =275.