Question

Trei covrigi si 4 paini cantaresc 2,267 kg,iar 4 covrigi si 4 paini cantaresc 2,372 kg.O paine cantareste:
A)0,105 kg
B)0,500kg
C)0,488kg
D)0,600kg

Answer 1

3c+4p=2,267
4c+4p=2,372
4c-3c=2,372-2,267
1c=0,105
3×0,105+4p=2,267
0,315+4p=2,267
4p=2,267-0,315
4p=1,952
1p=1,952:4
1p=0,488kg
C este corect