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Using digits (1,2,3,4,5,6,7,8) without repetition, a four-digit number must be greater than (3000) and odd. How many numbers can be formed?

Answer and explanation

Correct answer: (570)

The thousands digit is from (3) to (8) and the units digit is odd. Split cases according to whether the thousands digit is odd or even.

Related tags

PermutationsCombinationsCountingHardFundamental Principle Of CountingPermutations And CombinationsMathematicsClass 11 Mcq

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