There are five students S, S2, S3, S4 and S, in a music class and for...

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There are five students S, S2, S3, S4 and S, in a music class and for them there are five seats R, R, R3, R and Rs arranged in a row, where initially the seat R, is allotted to the student S, i = 1, 2, 3, 4, 5. But, on the examination day, the five students are randomly allotted the five seats. For i = 1, 2, 3, 4, let T denote the event that the students S and S+1 do NOT sit adjacent to each other on the day of the examination. Then, the probability of the event T T T3 T4 is 1 1 (A) (B) 15 7 60 (C) (D) 10 1 -15 There are five students S, S2, S3, S4 and S, in a music class and for them there are five seats R, R, R3, R and Rs arranged in a row, where initially the seat R, is allotted to the student S, i = 1, 2, 3, 4, 5. But, on the examination day, the five students are randomly allotted the five seats. For i = 1, 2, 3, 4, let T denote the event that the students S and S+1 do NOT sit adjacent to each other on the day of the examination. Then, the probability of the event T T T3 T4 is 1 1 (A) (B) 15 7 60 (C) (D) 10 1 -15

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