Answer:
47 pupils
Step-by-step explanation:
Since there are 15 pupils who play both sports, we can subtract 15 from both of the totals. (25 - 15 = 10 and 32 - 15 = 17)
From this we can see that there are 10 pupils who play volleyball, 17 who play basketball, 15 who play both, and 5 who don't participate.
Adding these numbers up:
10 + 17 + 15 + 5 = 47 pupils
