Let A and B be two sets such that nA-70- nB-60 and nA- B-110- Then nA- B is equal to-

The correct option is B 20 We know, #160; n(A∪ B)=n(A)+n(B) n(A∩ B) ∴ #160; n(A∩ B)=n(A)+n(B) n(A∪ B) #160; #160; #160; #160; ...

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Cardinality

Let A and ...

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Let $A$ and $B$ be two sets such that $n (A) = 70, n (B) = 60$ and $n (A \cup B) = 110$ . Then $n (A \cap B)$ is equal to-

240

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20

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100

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120

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Similar questions

If A and B are two sets such that n(A) = 70, n(B) = 60, $n (A \cup B)$ = 110, then $n (A \cap B)$ is equal to

A

B

n (A) = 70

n (B) = 90

n (A \cup B) = 110

n (A \cap B)

n (A) = 70, n (B) = 60, n (A \cup B) = 110

n (A \cap B)

Let A and B be two sets such that n (A) = 20, n (A \cup B) = 42 and n (A \cap B) = 5 . Then, n (B - A) =

n (A \cup B) = 42

n (A \cap B) = 4

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