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Questions  >>  Olympiad-Math  >>  Class 8
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A box contains 24 identical balls of which 12 are white and 12 are 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 4th time on the 7th draw is

$\begin{array}{1 1} \large\frac{5}{64} \\ \large\frac{27}{32} \\ \large\frac{5}{32} \\ \large\frac{1}{2} \end{array} $

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