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A restaurant coupon has (3) meal types (6) discount options and (4) validity-day options. How many coupon types are possible?

Answer and explanation

Correct answer: 72

By the fundamental principle of counting, each of the 3 meal types can be paired with 6 discount options and, for each such pair, 4 validity-day options. Hence, the total number of coupon types is \(3 \times 6 \times 4=72\). Option 36 does not account for all 4 validity options. Exam tip: Multiply the numbers of choices when the selections are independent and made in stages.

Related tags

Fundamental Principle Of CountingMultiplication RulePermutations And CombinationsClass 11 MathematicsCounting TechniquesMathematicsClass 11 Mcq

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