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

Answer and explanation

Correct answer: (180)

There are (3) even choices for the units place and (5\cdot4\cdot3) ways for the rest, so (180). In exams, apply the last-digit condition first.

Related tags

PermutationsEven NumbersDigitsPermutations And CombinationsMathematicsClass 11 Mcq
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