Question

pls answer this question​

Answer 1

Answer:

Let f,b,c denote the set of people wgo recived medals in football,basketball and cricket respectively.

Number of medals won in football= n(f) =38,

Number of medals won in basketball = n(b)= 15,

Number of medals won in cricket = n(c)= 20

Number of medals won in either football ,basketball, or cricket = n(f u b u c)= 58

Number of medals won in all football,basketball and cricket = n(f n u n c ) = 3