Question

If n(A)=16, n(B)=13 and n(A U B),read as A union B=22,then find n(A n B),read as A intersection B.​

Answer 1

Answer:

7

Step-by-step explanation:

n(A U B)=n(A)+n(B)-n(A∩ B)

22=16+13-n(A∩ B)

n(A∩ B)=29-22

n(A∩ B)=7