Question

in a class of 25 students, 15 play hockeyand 16 play basketball. if there are 4 students who play neither sport, determine the number of students who play both hockey and basketball

Answer 1

Let the number of who play both be x
Number of students who play sports 25-4=21

Use venn diagram

(15-x)+x+(16-x)=21
Which gives x=10

10 play both sport
15-10=5 play only hockey
16-10=6 play only basketball

Answer 2

Hope above answer helps.

Answer 3

nanga naach