4 first year and 3 second year students are to be seated in a row for their respective examinations in a manner that no two students from the same class are together (on adjacent seats). How many distinct seating arrangements are possible?
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Combinatorics and counting has come up 24 times in 5 exams since 2009.
This question is on Permutations and combinations, part of Combinatorics and counting in Mathematics.
Counting arrangements and selections, with and without restrictions.
TestStop has 12 past-paper questions on this subtopic.
Question from the UoH 2013 paper. Solutions are TestStop's own. Not affiliated with or endorsed by any examination authority.