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Set a contains 21 elements a B contain 16 element and five element our common percent ANB how many elements are the ANB

Set A Contains 21 Elements A B Contain 16 Element And Five Element Our Common Percent ANB How Many Elements Are The ANB class=

Answer :

We will have the following:

For the information provided we will have that A unit B has the following number of elements:

[tex]n_EA\cup B=21+16-5\Rightarrow n_EA\cup B=32[/tex]

So, the number of element in A union B is 32 elements.

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