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i did 6! x 7C3 instead of 7P3, cuz ig it doesnt matter where they go?

10 students in a circular table, number of arrangments if 3 particualr students cant sit next to each other.

I had smth like this cuz pre sure u have to fix one of the elements?

what about this? a)11 people: 4 teachers, 2 parents, 5 students. Total number of arrangements in which teachers sit together but no teacher sits next to a student. b) one of the students came with their parent. Find the probability that this student sits next to their parent. btw this is on a...

a) Number of ways a 6 player soccer team out of a selection of 15 people. b) Hence, what is probability of Player A being accepted into the team while Player B isn’t?