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If P(A) = 0.4 P(B) = x , P(A uu B) = 0.7...

If `P(A) = 0.4 P(B) = x , P(A uu B) = 0.7` and the events A and B are mutually exclusive, then x =

A

a) 3/10

B

b) 1/2

C

C) 2/5

D

d) 1/5

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