Re: At Fantasyland High School, there are 16 members in the math club and
[#permalink]
15 Aug 2025, 10:01
16 students for math, and 12 for chess. 10 are in only one of the two clubs, that means that it's A or B or = Only Math plus Only Chess.
In the venn diagram, you would assign x as the overlap so you can find both. What we do know is that only Math plus only chess equals 10, so in order to get only math and only chess you would do 16 - x + 12-x = 10
Solve that and you get 9.