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A box contains 20 identical balls of which 5 are white and 15 black. The balls are drawn at random from the box one at a time with replacement. The probability that a white ball is drawn for the 3rd time on the 6th draw is-
A. |
`1/2` |
B. |
`135/2048` |
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C. |
`135/1024` |
D. |
`27/4096` |