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Cel mai inteligent răspuns!
2014-04-16T17:25:31+03:00
L/l=3/4
L=3l/4
2L+2l=252
2* 3l/4 +2l=252
3l/2 +2l =252 aducem la acelasi numitor
3l+4l=504
7l=504
l=72      L=3*72/4=54