Question

n (A) = 65
n (B) = 80
n (AUB) = ?
n (AnB) = ?
n (A-B) = ?
n (B-A)=?​

Answer 1

Answer:

• n(AUB)= 145
• n(AnB)= 15
• n(A-B)= -15
• n(B-A)= 15