Question

Com os algarimos 1,2,3,4,5 e 6 podemos formar quantos números distintos de 4 algarismos

Answer 1

1:1000,1001,1002,1003,1004,1005,1006,1007,1008,1009.
2:2000,2001,2002,2003,2004,2005,2006,2007,2008,2009.
3:3000,3001,3002,3003,3004,3005,3006,3007,3008,2009.
4:4000,4001,4002,4003,4004,4005,4006,4007,4008,4009.
5:5000,5001,5002,5003,5004,5005,5006,5007,5008,5009.
6:6000,6001,6002,6003,6004,6005,6006,6007,6008,6009.

Espero ter ajudado!