If $n ( A ) = 90$ , $n ( A \cup B ) = 190$ , and $n ( A \cap B ) = 30$ , find $n ( B )$ .
$n ( B ) =$ __________

Name: If $n ( A ) = 90$ , $n ( A \cup B ) = 190$ , and $n ( A \cap B ) = 30$ , find $n ( B )$ . $n ( B ) =$ __________
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Question

If $n ( A ) = 90$ , $n ( A \cup B ) = 190$ , and $n ( A \cap B ) = 30$ , find $n ( B )$ .
​ $n ( B ) =$ __________

Quizplus · Accepted Answer

The Answer of If $n ( A ) = 90$ , $n ( A \cup B ) = 190$ , and $n ( A \cap B ) = 30$ , find $n ( B )$ .
​ $n ( B ) =$ __________

If n(A)=90n ( A ) = 90n(A)=90 n(A∪B)=190n ( A \cup B ) = 190n(A∪B)=190

If $n ( A ) = 90$ $n ( A \cup B ) = 190$