Răspuns :
p+v+n=851
v+n=659
p+v=605
605+n=851
n=851-605
n=246
v+n=659
v+246=659
v=659-246
v=413
p+413+246=851
p+659=851
p=851-659
p=192
v+n=659
p+v=605
605+n=851
n=851-605
n=246
v+n=659
v+246=659
v=659-246
v=413
p+413+246=851
p+659=851
p=851-659
p=192
P +V + N = 851
V + N=659
P +V =605
1) cati lei are P? 851-659=192 lei
2) cati lei are N? 851-605=246 lei
3) cati lei are V? 659-246=413 lei
192+413+246=605+246=851
V + N=659
P +V =605
1) cati lei are P? 851-659=192 lei
2) cati lei are N? 851-605=246 lei
3) cati lei are V? 659-246=413 lei
192+413+246=605+246=851