a+b+c=52
a=b/2⇒b=2a
c=a/2+3
a+b+c=52
a+2a+a/2+3=52
3a+a/2=52-3
3a+a/2=49
6a+a=98
7a=98
a=14
b=2*14=28 b=28
c=a/2+3=14/2+3=10 c=10
primul val are 14m
al doilea val 28m
al treilea val 10m
I I---I---I
II I---I---I---I---I
III I---I....+3
(52-3):7=49:7=7
deci o jumatate este 7 atunci avem
I 7*2=14m
II 7*4=28m
III 7+3=10m