Question 1154967
Probability of WHITE-BLACK-WHITE = 7/12 * 5/11 * 6/10 = 210/1320
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Probability of BLACK-WHITE-BLACK = 5/12 * 7/11 * 4/10 = 140/1320
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Probability of either = 210/1320 + 140/1320 = 350/1320 = <b>35/132</b>