Răspunsuri

2014-09-21T13:16:30+03:00
Stiuca x kg
crap 4x kg

x+4x=125
5x=125
x=125:5
x=25(kg de stiuca)
25x4=100(kg de crap)
2014-09-21T13:16:46+03:00
C+s=125
c=4s

4s+s=125
5s=125
s=25 kg de stiuca

c=4*25
c=100 kg crap