In a school, 80 students practice volleyball, 120 soccer, 20 both sports and 70 students, no sport. Choosing a student at random. What is the probability that he only practices volleyball?

Number of students who practice volleyball: 80 Number of students who practice soccer: 120 Number of students who practice both sports: 20 Number of students who do not practice any sport: 70 To find the number of students who only practice volleyball, we subtract the number of students who practice both sports from the total number of students who practice volleyball: Number of students who only practice volleyball = Number of students who practice volleyball - Number of students who practice both sports = 80 - 20 = 60 the total number is 80+120+70-20=250 P(Volleyball only) = V / Total =60/250 =0.24