20------x
100------17,5
x=17,5*20/100=3,5zł
1 kg -100 dag
0,2 * 17,50 zł =3,5 zł
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20------x
100------17,5
x=17,5*20/100=3,5zł
1 kg -100 dag
0,2 * 17,50 zł =3,5 zł