Question

" PARAGRAPH "A"
There are five students S₁, S₂, S₃, S₄ and S₅ in a music class and for them there are five seats R₁, R₂, R₃, R₄ and R₅
arranged in a row, where initially the seat Rі is allotted to the student Sі, i = 1, 2, 3, 4, 5. But, on the examination
day, the five students are randomly allotted the five seats.
(There are two questions based on PARAGRAPH "A", the question given below is one of them)"
For i = 1, 2, 3, 4, let Tᵢ denote the event that the students Sᵢ and Sᵢ₊₁ do NOT sit adjacent to each other on
the day of the examination. Then, the probability of the event T₁∩ T₂ ∩ T₃ ∩ T₄ is
(A) 1/15
(B) 1/10
(C) 7/60
(D) 1/5

Answer 1

Answer:

7/60 .hope the answer is helpful