August 2018 1 14 Report
Terdapat dua jenis keramik utk dipasang pada ruangan 7.8 m x 8.85 meter. Keramik 1 berukukan 40x40 dgn harga 60.000/dus (6 pcs). Keramik 2 berukuran 20x10 dgn harga 55.000/dus (25 pcs). Berapa dus keramik 1 dan berapa dus keramik 2 agar biaya pembelian kedua keramik seminimum mungkin?
Mohon bantuannya ya, trmakasih:)
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