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If n(A xx B) = 15 and A = {1,3,7} then ...

If n`(A xx B) = 15 ` and A = {1,3,7} then n (B) is .............. .

A

3

B

5

C

1

D

15

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Knowledge Check

  • If n (A xx B) =24 and A = {1,3,5,7} then n (B) is

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    D
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