Răspuns:
520kg...........33.28 euro
40kg..............x euro
X=40*33.28/520
X=1331.2/520
X=2.56euro
520kg........33.28 euro
85kg.............x
X=85*33.28/520
X=2828.8/520
X=5.44euro
520kg..........33.28 euro
140kg.............x euro
X=140*33.28/520
X=4659.2/520
X=8.96euro