Question

in a college, there are 24 students who either play hockey or football, 15 students play hockey and 6 students play hockey and football both. how many play only football?​

Answer 1

Answer:

24 are not so they are not calculated and 15 are playing hockey so they also are not included and 6 are playing hockey and football

therefore 6 players are playing football

Answer 2

Answer:

15

Step-by-step explanation:

n(H ∪ F) = 24

n( H ) = 15

n(H ∩ F) = 6

Now,

By property,

n(H ∪ F) = n(H) + n(F) - n(H ∩ F)

So,

24 = 15 + n(F) - 6

n(F) = 24 + 6 - 15

n(F) = 15

So,

15 students of the college only play football