Question

If A and B are subsets of the universal set U

and n (U) = 100, n (A) = 80, n (B) = 40,

n (A′ ∩ B′) = 10, then find

i. n (A ∪ B) ii. n (A ∩ B)

iii. n (A′ ∩ B) iv. n (A ∩ B′)

Answer 1

ur question is not clear dude