In a survey of students about favorite sports, the results include 20
who like tennis, 31
who like football, 9
who like tennis and football, 10
who like tennis and baseball, 21
who like football and baseball, 4
who like all three sports, and 9
who like none of the sports. How many students like only tennis and football? How many students like only tennis and baseball? How many students like only baseball and football?
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Part 1
How many students like only tennis and football?
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(Type a whole number.)
To find the number of students who like only tennis and football, we can calculate the total number of students who like tennis and football (10) and subtract from it the number of students who like all three sports (9).
So, the number of students who like only tennis and football is 10 - 9 = 1.