Four friends board an airliner just before departure time. There are only 12 seats left, 2 of which are aisle seats. How
Posted: Wed May 11, 2022 10:54 pm
Four friends board an airliner just before departure time. There are only 12 seats left, 2 of which are aisle seats. How many ways can the 4 people arrange themselves in available seats so that at least one of them sits on the aisle? The 4 people can arrange themselves in ways,