Răspuns:
a+b+c+d+e=520
a,b,c,d,e----nr pare consecutive
b-a+2
c-b+2
d-c+2
e-d+2
a,b,c,d,e=?
a /------/
b/------/---/+2
c/------/---/+2/----/+2
d/-----/---/+2/----/+2/---/+2
e/----/---/+2/----/+2/---/+2/---/+2
suma:520
520-10×2=520-20=500(5a)
500:5=100(a)
100+2=102(b)
102+2=104(c)
104+2=106(d)
106+2=108(e)
verificare: 100+102+104+106+108=520
R: 100,102,104,106,108
Sper ca te am ajutat!
