In the given figure the if n(A)=20,n(U)=50,n(C)=10 and n(A∩B)=5 then n(B)=?(a) 35(b) 20(c) 30(d) 10The question was asked in homework.I need to ask this question from Sets topic in portion Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics

In the given figure the if n(A)=20,n(U)=50,n(C)=10 and n(A∩B)=5 then

1.	In the given figure the if n(A)=20,n(U)=50,n(C)=10 and n(A∩B)=5 then n(B)=?(a) 35(b) 20(c) 30(d) 10The question was asked in homework.I need to ask this question from Sets topic in portion Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics
Answer» The CORRECT CHOICE is (a) 35 The EXPLANATION is: Here n(B)= n(U) – n(A) + n(A∩B).

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In the given figure the if n(A)=20,n(U)=50,n(C)=10 and n(A∩B)=5 then n(B)=?(a) 35(b) 20(c) 30(d) 10The question was asked in homework.I need to ask this question from Sets topic in portion Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics

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