mathbrain78 mathbrain78

24-08-2018
Mathematics

contestada

there are 9000 four digit numbers. 4536 of the four digit numbers have no repeating digits. How many four digit numbers have at least one repeating digit?

Respuesta :

benscheidhauerozarks benscheidhauerozarks

24-08-2018

This is subtraction:

9,000-4,536=4,464

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