[" 27.There are "7" seats in a row.Three...

[" 27.There are "7" seats in a row.Three persons take seats at random.The probability that "],[" middle seat is always occupied and no two persons are consecutive is "],[[" (a) "(9)/(70)," (b) "(9)/(35)," (c) "(4)/(35)," (d) None of these "]]

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[" 27.There are "7" seats in a row.Three persons take seats at random.The probability that "],[" middle seat is always occupied and no two persons are consecutive is "],[[" (a) "(9)/(70)," (b) "(9)/(35)," (c) "(4)/(35)," (d) None of these "]]

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