In how many ways can Annie, Bushra, Camelia, Don, Elina and Farzana be seated if Annie and Bushra cannot be seated next to each other.
সমাধান
সঠিক উত্তর: Option D
Suppose, number of people =10 total expenditure= G per person pay= g/10 if n number of people are added then per person pays=G/10+n so, expenditure reduces= G/10-G/10+n=Gn/100+10n