Question

Aflati abc care impartite la bc dau catul egal cu restul 18

Answer 1

Răspuns

abc=846

Explicație pas cu pas:

abc: bc=18 rest 18

abc=18•bc+18

a00+bc=18•bc+18

a00=17•bc+18

u(7•c+8)=0=> c=6

a00=17(10b+6)+18

a00=170•b+102+18

a00=170•b+120    :10

a0=17•b+12

u(7•b+2)=0=> b=4

a0=17•4+12=68+12=80

a=8; b=4; c=6

abc=846

846:46=18 rest 18