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2014-06-17T15:55:53+03:00
A*450+b*250=4350
numarul pungilor de 450=a
numarul pungilor de 250 =b
4*a=b
a*450+4*a*250=4350
450*a+1000*a=4350
1450*a=4350
a=4350/1450
a=3
b=4*a=4*3=12

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