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A shopkeeper has 6 packet types and 8 label types. Four specific packet-label pairs are not allowed. Each allowed pair is available in 3 sizes. How many valid options are there?

Answer and explanation

Correct answer: 132 options

There are 6 × 8 = 48 possible packet-label pairs before restrictions. Excluding the 4 disallowed pairs leaves 44 valid pairs. Each has 3 size choices, so 44 × 3 = 132 valid options.

Related tags

Counting PrincipleRestricted ChoicesFundamental Principle Of CountingPermutations And CombinationsMathematicsClass 11 Mcq

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