Explicație pas cu pas:
180 kg mere.......70 kg banane......710ron
60 kg mere.........17 kg banane.......205ron |•3
180 kg mere.......70 kg banane........710 ron
180 kg mere.......51 kg banane........615 ron
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////////////////////. 19 kg banane=95ron
1 kg banane=95:19=5( Ron). 17 kg banane=5•17=85 Ron
60 kg mere=205-85=120 ron
1 kg mere=120:60=2 Ron
proba
180•2+70•5=360+350=710
60×2+17×5=120+85=205