Răspuns :
a+b+c=246
b=2a=> a=b/2
b=c-36=> c=b+36
b/2+b+b+36=246
(b+4b)/2=210
5b=420
b=420/5=84
a=42
c=120
b=2a=> a=b/2
b=c-36=> c=b+36
b/2+b+b+36=246
(b+4b)/2=210
5b=420
b=420/5=84
a=42
c=120