Question

if n(a) =15 n(AUB) =26 n(AnB) =5 then n(b) ​

Answer 1

Answer:

n(AUB) =n(A) +n(B) -n(AnB)

26=15+n(B) -5

26-10=n(B)

Therefore n(B) = 16

Answer 2

answer:n(AuB)=n(A)+n(B)-n(AnB)

26=15+n(B)-5

26-10=n(B)

therefore:n(B)=16