Mathematics, 19.05.2021 20:20, Woodlandgirl14

Suppose A and B are sets such that AuB has 20 elements, AnB has 7 elements, and the number of elements in B is twice that of A. what is the number of elements in A?

Answers: 3

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Suppose A and B are sets such that AuB has 20 elements, AnB has 7 elements, and the number of elemen...