contestada

How many different ways 5 people a,b,c,d,e sit in a row in movie theater if a and b must sit together, c must sit to the right of but neceraily next to b , d and e will not sit next to each other?

Respuesta :

d,a,b,c,e d,c,b,a,e e,c,b,a,d e,a,b,c,d so there is only four way they can sit

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