Răspunsuri

2014-09-24T16:19:06+03:00
Albe - x
intermediare - y
negre -z
x=2y     y=x/2
z=x/4
x+x/2+x/4=889 aducem la acelasi numitor
4x+2x+x=3556
7x=3556
x=508 albe
y=508/2= 254 intermediare
z=508/4=127 negre