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Cel mai inteligent răspuns!
2014-10-02T11:35:45+03:00
A=k
b=2k/3
c=2k

k+2k/3+2k=66 amplificam cu 3
3k+2k+6k=198
11k=198
k=18

a=k=18
b=2*18/3 => b=12
c=2*18=> c=36