Math, asked by armyblink61, 9 days ago

maths...std-9

sets

Abswer plz

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Answered by anbukodij

0

Step-by-step explanation:

n(AUB) =n(A) +n(B) -n(AintersectionB)

70=40-x+50-x-x

70=90-3x

3x=90-70

x=20/3

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