Question

choose
If n(A) = 50, n(B) = 60 and n (A∪B) = 100, the value of n (A∩B) is ,
10
-10
210
90

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

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

= 100= 50 + 60 - (AnB)

= (AnB)= 110 - 100

= (AnB)= 10

Therefore n(AnB) = 10