Question

Rezolvati:
x:15= C1 r 13
x:30= C2 r 13
x:45= C3 r 13

unde C= cat, r= rest , x= dempartitul

Answer 1

X /15= 1 rest 13
x-13/15 =1            unde / este semnul impartiri
x-13= 1 ori 15
x-13=15
x=15+13
x=28
28/15= 1 rest 13
x/30 =2 rest 13      x -13 /30=2        x-13= 2 ori 30
x-13=60
x=60+13
x=73
73/30 =2 rest 13
x/45=3 rest 13      x-13/45 =3      x-13 =3x45        x-13=135          x=135+13
x=148
148/  45=3 rest 13