Question

if p and Q are two sets such that p has 40 elements ,p U Q ​

Answer 1

Answer:

n(P)=40

n(P∪Q)=60

n(P∩Q)=10

n(P∪Q)=n(P)+n(Q)−n(P∩Q)

60=40+n(Q)−10

n(Q)=60−40+10

n(Q)=30

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Answer 2

Step-by-step explanation:

n(P)=40

n(P∪Q)=60

n(P∩Q)=10

n(P∪Q)=n(P)+n(Q)−n(P∩Q)

60=40+n(Q)−10

n(Q)=60−40+10

n(Q)=30