Răspuns :
1p=2c
2c+1c=1.20
3c=1.20
c=1.20:3
c=0.40 bani
1p=2c
1p=2*0.40
1p=0.80 bani
2.40:0.80=3p
2.40:0.40=6c
2c+1c=1.20
3c=1.20
c=1.20:3
c=0.40 bani
1p=2c
1p=2*0.40
1p=0.80 bani
2.40:0.80=3p
2.40:0.40=6c