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A bag contans 2017 red balls and 2017 bl...

A bag contans 2017 red balls and 2017 black balls. We remove two balls at a time repeatedly and (1) discard them if they are of some colour (2) discard the black ball and return to the bag the red ball if they are of different colours. Then the probability that this process will terminate with one red ball is `'p'` where `3p` is______

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The correct Answer is:
3
It's a sure event so `p=1`
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