Răspunsuri

2014-05-24T13:51:18+03:00
D=3c
d+2c=2 kg si 300g
2 kg=2000 g, Deci
d+2c=2000+300
d+2c=2300g
3c+2c=2300
5c=2300g
c=2300:5
c=460 grame

d=3*460
d=1380 grame
10 3 10