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If there are 6 elements in ( A u B ) and 1 element in ( A n B ) answer the following

A. What is the maximum number of elements possible for A?
B. what is the least possible number of elements in B?
C. If A has 'n' elements how many elements are in B?

  • Math -

    max in A would be 6.
    min in B would be 1.

    6 = n + B - 1
    B = 7-n

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