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If A and B be two sets n (A)=15, n(B)=25, then number of possible values of n (A delta B) (symmetric difference of A and B is (1) 30 (2) 16 (3) 26 (4) 40

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Q. If A and B be two sets such that n(A) = 15, n(B) =25, then number of possible values of

n (A Δ B)

(symmetric difference of A and B) is

A

B

be two sets such that

n (A) = 15, n (B) = 25

, then number of elements (symmetric difference of

A

B

)

Q. For any two sets A and B, if n(A) =15, n(B) = 12, A ∩ B ≠ ϕ and B ⊄ A, then the maximum and and minimum possible values of n(A ∆ B) are _______ and ___________ respectively.

Q. For two sets if

n (A) = 4

n (B) = 3

then find the number of elements if

A Δ B

Q. A and B are any two non-empty sets and A is proper subset of B. If n(A) = 5, then the minimum possible value of n(A ∆ B) is ____________.

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