In a group of 22 boys, 13 play basketball and 15 play football. 3 of the boys play neither. how many play both ?  Choose the correct choice: A) 18 B) 20 C) 21 D) 22 E) 25
18 boys play something. If b play both, then   13+15-b = 18   18nswer is 18
<result>A</result>
In a group of 22 boys, 13 play basketball and 15 play football. 3 of the boys play neither. how many play both ?