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Subjects
Class 11MathematicsPermutations and CombinationsPermutationsMedium
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How many (5)-digit even numbers can be formed from (1,2,3,4,5,6,7,8) without repetition?

Answer and explanation

Correct answer: (3360)

There are (4) even choices for the last place and the remaining (4) places are filled in (^{7}P_4) ways. The total is (4\cdot840=3360).

Related tags

PermutationsEven NumbersDigitsPermutations And CombinationsMathematicsClass 11 Mcq
सुधार सुझाएँ / Earn

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