Question

bunica a rasp;gaste sunt cu 9 mai putine decit o treime di nr ratelor,iar gaini cu 9 mai multe decit rate.cite pasari sunt din fiecare ,daca in total are 105.

Answer 1

Rate   |---------|---------|---------|
Gaini  |---------|---------|---------|-9-|
Gaste |-----|9-|
105+9-9=105
105/7=15
Gaste 15-9=6
Rate 15x3=45
Gaini 15x3+9=45+9=54
Verificare 54+45+6=105

Answer 2

gaste  /------/-9-/
ratele /----------/----------/----------/
gaini  /----------/----------/----------/-9-/
105+9-9=105
114-9=105
105:7=15
gaste=15-9
gaste=6
ratele=15*3
ratele=45
gaini=15*3+9
gaini=45+9
gaini=54
6+45+54=105