In a school, 70 play only hockey, 100 play only football, and 30 play both games. 150 students do not play anything at all. What is the percentage (rounded to two decimals) of hockey players to total students in the school?
Explanation
To find the required percentage, we must first determine the total number of students and the total number of hockey players.
Step 1: Calculate the total number of students
The total number of students is the sum of those playing only hockey, only football, both games, and those playing nothing:
Total Students=70+100+30+150=350
Step 2: Calculate the total number of hockey players
Hockey players include those who play only hockey and those who play both games:
Total Hockey Players=70+30=100
Step 3: Calculate the percentage
The percentage of hockey players to total students is calculated as:
Percentage=(Total StudentsTotal Hockey Players)×100
Percentage=(350100)×100=35010000≈28.57%
Conclusion:
The percentage of hockey players in the school is 28.57%, which corresponds to Option 3.