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If X and Y be two events such that P(X//...

If X and Y be two events such that `P(X//Y) = 1/2, P(Y//X) = 1/3 and P(X nnn Y) = 1/6`, then `P(X uu Y)` is

A

`1/3`

B

`2/5`

C

`1/6`

D

`2/3`

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B, C, D
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