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If 7 white, 6 black and 1 red ball is arranged in a row, the probability the no two balls of the same colour are adjacent is :A. `(2xx7!6!)/(14!)`B. `(14xx7!xx6!)/(14!)`C. `(26xx7!xx6!)/(14!)`D. `(7!xx7!)/(14!)` |
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Answer» Correct Answer - C Arrange 1 red and 7 white balls and count |
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