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A company has (5) department codes and (6) employee codes. If an identity is made by combining one department code and one employee code how many identities are possible?

Answer and explanation

Correct answer: 30

Each department code can be paired with any of the 6 employee codes. Therefore, by the fundamental principle of counting, the total number of identities is \(5 \times 6=30\). The value \(5+6=11\) would result from addition, which is not applicable because one code from each group is selected together. Exam tip: Multiply the numbers of choices when a task is completed through successive steps.

Related tags

Fundamental Principle Of CountingPermutations And CombinationsClass 11 MathematicsCounting PrincipleMultiplication RuleMathematicsClass 11 Mcq

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