Răspunsuri

2014-05-27T22:44:23+03:00
P+i=10
c+i=20
c+p=24  se aduna toate cele 3 ecuatii si se obtine

2p+2c+2i=10+20+24
2(p+c+i)=54
p+c+1=27 kg au impreuna
7 4 7