Question

determinati numerele de forma _
23x divizibil cu 2
_
x13x divizibile cu 5

_
x2y divizibil cu 5


_
3xx divizibile cu 10



_
2xy divizibil cu 10

Answer 1

230, 232, 234, 236, 238
5135
120, 125, 220, 225, 320, 325, 420, 425, 520, 525, 620, 625, 720, 725, 820, 825, 920, 925
300
200, 210, 220, 230, 250, 260, 260, 270, 280, 290

Answer 2

1. 230,232,234,236,238. 2.5135. 3.x=1,2,2......9 si y=0,5. 4.300. 5.x=1,2,3....9 si y=0