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a fost răspuns

Aflati numerele naturale de forma abc, stiind ca abc-ab-c=46

Răspuns :

Cazaciocirina
abc-ab-c=486
100a+10b+c-10a-b-c=486
90a+9b=486 
impartim prin 9
10a+b=54
10a+b=10x5+4
a=5
b=4
c=0,1,2,3,4,5,6,7,8,9
540,541,542,543,544,545,546,547,548,549