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Three persons A,B,C are to speak at a function along with 5 other persons. If the persons speak in random order, the probability that A speaks before B and B speaks before C is pq, where p,q are co-prime. Then p+q is

Answer» Three persons A,B,C are to speak at a function along with 5 other persons. If the persons speak in random order, the probability that A speaks before B and B speaks before C is pq, where p,q are co-prime. Then p+q is


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