Question

Suma a trei numere consecutive pare este 30 .Afla nr

Answer 1

a,b,c sunt cele 3 nr consecutive pare
b=a+2
c=b+2=a+2+2=a+4
a+b+c=30
=>a+a+2+a+4=30
3a+6=30
3a=30-6=24
a=24:3=8
b=a+2=8+2=10
c=a+4=8+4=12
Verificare: 8+10+12=30

Answer 2

a, b=a+2, c=a+4
a+b+c=30

a+a+2+a+4=30
3a=24
a=8
b=10
c=12