Question

Pe marginea unei prapastii au vazut niste marmote care se odihneau.Doua marmote valoreaza cat un soim.Un vultur valoreaza cat un soim si 3 marmote.Cate marmote valoreaza cat 2 vulturi?

Answer 1

2marmote = 1 soim
1 vultur = 1 soim + 3 marmote
1 v = 2 m + 3 m
1v = 5 m
2v = 5 m * 2
2v = 10m
v = vultur
m - marmota s - soim

Answer 2

2m=1 s

1v=1s+2m

2v=2(1s+2m)

2v=2s +4m

2v=2*2m+4m

2 vulturi valoreaza 4m+4m=8 marmote