SOLUTION: in how many ways can a class of 20 children be split with two groups of 8 and 12 respectively if there are 2 twins in the class who must not be separated

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Question 1171693: in how many ways can a class of 20 children be split with two groups of 8 and 12 respectively if there are 2 twins in the class who must not be separated
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
"respectively" is superfluous.