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How many numbers greater than 600 can be formed with the digits 5,6,7,8 if no digit is used more than once.

Respuesta :

Idkwhattocallthis
5678   
5687   
5768                        multiplied by 4
5786     (for the numbers in the 6, 7 & 8 thousands)
5867   
5876   
-----------------------------------
Current total: 24 numbers

657
675
678
687
658
685
------------------
End Total: 30

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