Respuesta :

yareliyazminelopez20

Step-by-step explanation:

DRAW VENN disgarm

say there are 100

33 - 9 = 24 study only Bio

16 - 9 = 7 study only chemistry

that is a total of 24 + 9 + 7= 40 that study at least one of them

so

100 - 40 = 60% play hockey instead