Question

2) If n(A)=10, n(AUB)=15, n(B)=12.Find n(AnB)​

Answer 1

Answer:

7

Step-by-step explanation:

n(A)=10

n(B)=12

n(AuB)=15

n(AnB)=?

formula= n(AnB)=n(A)+n(B)-n(AuB)

so,

n(AnB)=10+12-15

n(AnB)=7