Question

if n(x)=8n,n (x n y)=5 and n(x u y)=18 find n(y)​

Answer 1

Answer:

15

Step-by-step explanation:

n(y) = n (X n Y) + n (X u Y) - n (X)

n(y) =  5 + 18 - 8

n(y) = 23 - 8

n(y) =  15

You can solve this by following some rules of solving practicle problem on union and intersection of sets.

Hope, it will help you....

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