Răspuns :
Facem urmatoarele notatii:
a -> nr de gaini
b -> nr de gaste
c -> nr de rate
Acum, conform problemei, cunoastem urmatoarele:
a + b + c = 518
b = a + 74
c = a + 120
Acum vom inlocui:
a + a + 74 + a + 120 = 518 --> 3a = 518 - 194 --> 3a = 324
a = 324 / 3 = 108
b = 108 + 74 = 182
c = 108 + 120 = 228
a -> nr de gaini
b -> nr de gaste
c -> nr de rate
Acum, conform problemei, cunoastem urmatoarele:
a + b + c = 518
b = a + 74
c = a + 120
Acum vom inlocui:
a + a + 74 + a + 120 = 518 --> 3a = 518 - 194 --> 3a = 324
a = 324 / 3 = 108
b = 108 + 74 = 182
c = 108 + 120 = 228
g=gaini
G=gaste
R=rate
g+G+R=518
G=g+74
R=g+120
g+g+74+g+120=518
3g=518-194
3g=324
g=324:3
g=108
G=108+74
G=182
R=108+120
R=228
verificare
228+182+108=
518
G=gaste
R=rate
g+G+R=518
G=g+74
R=g+120
g+g+74+g+120=518
3g=518-194
3g=324
g=324:3
g=108
G=108+74
G=182
R=108+120
R=228
verificare
228+182+108=
518