Question

Aflati numerele naturale care impartite la un numar de o cifra dau catul 12 si restul 5 .

Answer 1

a;6=12r5
a=12*6+5
a=72+5
a=77..
a;7=12r5
a=12*7+5
a=84+5
a=89
a;8=12r5
a=12*8+5
a=90+5
a=95
a;9=12r5
a=12*9+5
a=108+5
a=113...decinr de o cifra sunt 6,7,8,9.iar nr naturale sunt77,89,95,113.