Math Problem Statement
Answer the following question
There are 3 different types of gems: Ruby, Sapphire, Emerald.
Each type has 3 identical gems.
You need to arrange 3 Ruby, 3 Sapphire, and 3 Emerald gems in a row. How many different ways can you arrange these 9 gems?
Hint: There are identical gems in the set. so think carefully.
Select your answer:
Select your answerOPTIONALTERNATIVE
C(15,3) = 3003
9! = 362880
9!/3!3!3! = 1680
C(9,3) = 84
3! = 6
Solution
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Math Problem Analysis
Mathematical Concepts
Combinatorics
Factorials
Multinomial Coefficients
Formulas
Multinomial coefficient formula: n! / (n1! * n2! * ... * nk!)
Theorems
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Suitable Grade Level
Grades 10-12
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