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If S is a sample space, P(A) = 1/3 P(B) ...

If S is a sample space, P(A) = 1/3 P(B) and `S = A cup B` where A and B are two mutually exclusive events, then P(A) =

A

1/4

B

1/2

C

3/4

D

3/8

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The correct Answer is:
A
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