4
a) x:6=13
x=6x13=78
x=6x13+1=79
x=6x13+2=80
x=6x13+3=81
x=6x13+4=82
x=6x13+5=83
b)x:8=5
x=40,41,42,43,44,45,46,47
Suma=348
c)10/7=1 r3
11/7=1 r4
12/7=1 r5
13/7=1 r6
15/7=2 r1
16/7=2 r2
17/7=2 r3
17/7=2 r4
.
.
97/7=13 r6
99/7=14 r1
Avem r2 de 12 ori r1 r3 r4 r5 r6 de 13 ori
Deci 12x2+13x1+13x3+13x4+13x5+13x6=24+13+39+52+65+78=271
