Question

If n(A) = 5, n(B)=10,
n(AUB)=x, then n(ANB)=y,
then x+y=​

Answer 1

Answer:

n(A) = 5

nB) = 10

n(AUB) = x

n(A) +n(B) -n(ANB) = x

5 + 10 - y = x

hence ,

x+y =15