Răspunsuri

2014-06-03T18:30:30+03:00
Md1=150*20/100=30 kg
md2=175*5/100=8,75 kg
md final = 30+8,75=38,75 kg
ms final = 150+175+0,2=325,2 kg
c% finala = 38.75/325.2 * 100 = 11.916 %