Soal tentang hitung persentase..

1 pon = 500gr
1 ons = 100gr

jadi, 300x500= 150.000 gr + 2000 gr
                      =152.000 gr

152.000 / 100, karena dia menjual tiap 100 gr
1520 x 500 = 760.000

1 pon = 500 gr
1 ons = 100 gr

300 pon + 20 ons
= 300(500) gr + 20(100) gr
= 150000 gr + 2000 gr
= 152000 gr

Uang yg diperoleh
= 152000/100 x 500
= 1520 x 500
= 760000 rupiah