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

S is sample space if `P(A)= (1)/(3)P(B)` and `S= A cup B` Then P(A) = ....... Where A and B are mutually exclusive events.

A

`(1)/(4)`

B

`(1)/(2)`

C

`(3)/(4)`

D

`(3)/(8)`

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A
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