Răspuns :
a+b+c=2450 faci segmentele ; a....../..../../ ;b=/...../ c=/...../ 2450:5=490 si ai aflat un segment a=490+250+90=830 b=830-250=580 c=2450-830-580=1040
a+b+c=2450
a=b+250 =>b=a-250
a=c+90 =>c=a-90
a+a-250+a-90=2450
3xa=2450+250+90
3xa=2790
a=2790:3
a=930
b=a-250 b=930-250 b=680
c=a-90 c=930-90 c=840
verificare: 930+680+840=2450