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10 green balls. You are allowed to move the balls between
the boxes so that There are two boxes, one containing 10 red
balls and the other containing when you choose a box at
random and a ball at random from the chosen box, the
probability of getting a red ball is maximized. This maximum
probability is
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Answer Posted / srinivas
First to select a box the probability is ½.
Initially if I select a ball from the box containing red balls the probability is 1.
After shifting the balls the maximum balls shifted is 10.
Then the probability of selecting a red ball from 20 is ½
Therefore the answer is ½*1+1/2*1/2 =3/4
| Is This Answer Correct ? | 2 Yes | 45 No |
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