Question

Let $X=$ {Ram, Geeta, Akbar} be the set of students of class $XI$, who are in school hockey team.
Let $Y=$ {Geeta, David, Ashok} be the set of students of class $XI$, who are in school football team.
Find $X\cap Y$.

Answer 1

Given: $X=$ {Ram, Geeta, Akbar} and
$Y=$ {Geeta, David, Ashok}
We see that element 'Geeta' is the only element common to both $X$ and $Y$.
$\therefore X\cap Y=$ {Geeta}