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sum of 6 digit number

The sum of \(6\) digit numbers that can be formed using all the digits 1,1,2, 3 , 3 , 4 ,4 in two different cases ,

when repetition of digit is allowed

and when repetition of digit is not allowed

Note by Jagdish Singh
4 years ago

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The second case is easy. Since you have only given four distinct numbers, no six-digit number is possible without repetition of a digit.

Mark Hennings - 4 years ago

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