Question
Six dancers are to be lined up for a stage entry. Among them, three are from the same team and must not be adjacent. How many valid line-ups are possible?
More Permutation and combination Questions
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- Find the quantity of methods of picking 4 cards from a set of 52 playing cards if four cards are of the same unit?
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- A team of 10 members is to be formed from 9 engineers and 6 doctors. Find the number of ways the team can be formed with at least 8 engineers.
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