Question

Q3 Let A and B
are two such that n(A)=7o.
n (B) = 60 and
=60 and n(AUB) = 11 , then n(ANB) is
240
50
40
20​

Answer 1

Answer:

119

Step-by-step explanation:

n(A U B) = n(A) + n(B) - n(A n B)

11 = 70 + 60 - x

x = 130 - 11

= 119

n(A n B) = 119