Question

Sper ca ma puteti ajuta eu nu sunt in clasele 1 4 ci in 5 8
Va spun acum
Scrieti nr nat de forma xyzz, stiind ca sunt divizibile cu 2, x+y=8 si x

Answer 1

xyzz => z = 0,2,4,6,8
        => x + y = 8 => x = 1,2,3,4,5,6,7,8
                                 y = 7,6,5,4,3,2,1,0
xyzz = 1700,2600,3500,4400,5300,6200,7100,8000
           1722,2622,3522,4422,5322,6222,7122,8022
           1744,2644,3544,4444,5344,6244,7144,8044
           1766,2666,3566,4466,5366,6266,7166,8066
           1788,2688,3588,4488,5388,6288,7188,8088