p and. q sit in a ring arrangement with 10 persons. What is the probability that P and Q will sittogether?
Answers
Answered by
1
Answer: number of ways of sitting 10 persons at round table: =(10−1)!=9! Since two persons will be always together, then number of persons: =8+1=9. So, 9 persons will be seated in (9−1)!=8! ways at round table and 2 particular persons will be seated in 2! ways. n(A)= The number of ways in which two persons always sit together =8!×2. P(A)=n(A )
Step-by-step explanation:
Similar questions