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If the events A and B are mutually exclusive events such that P(A) = `(3x + 1)/(3)` and P(B) = `(1 - x)/(4)`, then the set of possible real values of x lies in the interval

A

[0,1]

B

`[1/3,2/9]`

C

`[-1/3,5/9]`

D

`[-7/9 , 4/9]`

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The correct Answer is:
C
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