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[" (A) "952/715" (B) "950/952],[" A "2n"...

[" (A) "952/715" (B) "950/952],[" A "2n" digit number starts with "2" and all its digits are prime,then the probability that the "],[" consecutive digits of the number is prime,is "],[[" (A) "4times2^(3n)," (B) "4times2^(-3n)," (C) "2^(3n)," (D) "2^(2n)]]

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