Răspunsuri

2014-03-06T18:35:39+02:00
X/a=y/b=z/c=t/d=u/e
x/a=5

a+b+c+d=110
x+y+z+t/a+b+c+d=5
x+y+z+t/110=5
x+y+z+t=550 
2 5 2