harga buku = 5 / 5 + 3 + 2 = 5 / 10 * 25000 = rp. 12500
harga penggaris = 3 / 5 + 3 + 2 = 3 / 10 * 25000 = rp. 7500
harga pensil = 2 / 5 + 3 + 2 = 2 / 10 * 25000 = rp. 5000
2 buku dan 3 pensil = 12500 * 2 = rp. 25000 + 5000 * 3 = 15000
RP. 25000 + rp. 15000 = rp. 40000
maaf kalau salah...
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harga buku = 5 / 5 + 3 + 2 = 5 / 10 * 25000 = rp. 12500
harga penggaris = 3 / 5 + 3 + 2 = 3 / 10 * 25000 = rp. 7500
harga pensil = 2 / 5 + 3 + 2 = 2 / 10 * 25000 = rp. 5000
2 buku dan 3 pensil = 12500 * 2 = rp. 25000 + 5000 * 3 = 15000
RP. 25000 + rp. 15000 = rp. 40000
maaf kalau salah...