Question

n(a)=30 (aunionb)=50 n(a intersection b)=12 then find n(b)



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Answer 1

Step-by-step explanation:

n(a union b) =n(a) +n(b) -n(a intersection b)

50= 30+ n(b) -12

50= n(b) +18

n(b) = 50-18=32

Answer 2

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