Question

There are 8 students on the curling team and 11 students on the badminton team. What is the total number of students on the two teams if 4 students are members on both teams

Answer 1

Well the first 4 you can see there is for the players who are only in curling team, the second 4 is for players on both teams, the 7 is for players in only badminton team

So the answer is 4 + 7 + 7 = 15