Question

Diketahui n(A)=10 , n(B)=20 , dan n (AUB) = 24 , maka n(A irisan B) =

Answer 1

N (AuB)= n(A) + n(B) - n(AnB)
24        = 10 + 20 - a
         a = 30 - 24
         a = 6

maaf kalo jawabannya salah

Answer 2

N(A) = 10
n(B) = 20
n(AUB) = 24

(10+20) - 24 = 30-24 = 6

n(A irisan B) = 6