Question

If n(U) = 50, n(A) = 20 and n(B) = 35 where U is the universal set, then the greatest value of n(A ∪ B) is


plss answer in detail....

Answer 1

Answer:

50

Step-by-step explanation:

n(a) =20

n(b) =35and given n(u) =50 then n(aub)=50

Answer 2

We know that

n(A ∪ B) = n(A) + n(B) - n(A n B)

So greatest value of n(A ∪ B) is

= n(A) + n(B)

= 20 + 35

= 55

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