Number of ways in which 7 people can occupy six seats 3 seats on each – InterviewSolution

1.	Number of ways in which 7 people can occupy six seats 3 seats on each side in a first class railwaycompartment if two specified persons are to be always included and occupy adjacent seats on thesame side, is (k). 5! then k has the value equal to(A) 2(B) 4(C) 8(D) none
Answer» 7 people 6 seats2 already specified so 5 people left and 4 seats left.5C24!2!4=85!K=8

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