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[" In a conference "10" speakers are present.If "S" ,wants to speak before "S_(2)&S_(2)" wants to speak afte "],[S_(y)" then the number of ways all the "10" speakers can give their speeches with the above restriction if th "],[" emaining seven speakers have no objection to speak at any number is: "],[[" "C."," (B) "^(" top "_(8))," (C) "_(3)^(" top ")," (D') "(10!)/(3)]]

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