The complete question
In a survey, a group of students were asked their favorite sport. eighteen students chose “other” sports, while 37.5% chose football, and 40% chose baseball. how many students chose football
Answer:
Number of student that chose football = 30
Explanation:
In a survey student were asked to choose their favorite sports.
The number of student that chose other sport = 18
The percentage number of students that chose football = 37.5%
The percentage number of students that chose baseball = 40%
The whole number of student survey = 100%
percentage number of student that chose other sport = 100% - 37.5% - 40%
percentage number of student that chose other sport = 22.5%
The total number of student surveyed can be computed as
Let the total number of student surveyed = a
22.5/100 × a = 18
22.5a/100 = 18
cross multiply
22.5a = 1800
a = 1800/22.5
a = 80
The number of student that chose football can be computed since the total number of student surveyed is known
Number of student that chose football = 37.5/100 × 80
Number of student that chose football = 3000 /100
Number of student that chose football = 30