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Subjects
Class 11MathematicsPermutations and CombinationsFundamental principle of countingHard
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For a T-shirt, there are (5) sizes, (7) colors, and (4) designs. With black color only (2) designs are available, and with other colors (4) designs are available. How many T-shirt combinations are possible?

Answer and explanation

Correct answer: (130)

By color cases, (5(1\times2+6\times4)=130) combinations are obtained. When one option behaves differently, make it a separate case.

Related tags

Permutations-And-CombinationsFundamental-PrincipleCountingHardFundamental Principle Of CountingPermutations And CombinationsMathematicsClass 11 Mcq
सुधार सुझाएँ / Earn

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