Question

If n(A) =36 , n(B) = 10 , n(AuB) =40 and n(A') =27 find n(u) and n(AnB)

Answer 1

Answer:

63

Step-by-step explanation:

Given :

n ( a ) = 36 n ( b ) = 10 n ( aub ) = 40 n ( a ' ) = 27

To find :

n ( u ) = ?

Solution :

we know that ,, n ( a ' ) = n ( u ) - n ( a ) 27 = n ( u ) 36 ( u ) = 27 +36 n ( u ) = 63

we know that ,, n ( a ' ) = n ( u ) - n ( a ) 27 = n ( u ) 36 ( u ) = 27 +36 n ( u ) = 63 The answer is 63

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