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Find the no of 4 digits nos that can be made with the digits 1234321so that the odd digits always occupy the odd places
Dear student There are 4 odd places and 3 even places.Odd numbers are 1,1,3,3.Odd numbers can be arranged in 4! / 2! 2! ways andeven numbers are 2,2,4, and even places are 3Even numbers can be placed in 3! / 2! The required no. of numbers = 6 * 3 = 18
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