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1 gros = 144 buah
1 lusin = 12 buah
yang terjual = (12 kodi + 2 gros + 15 lusin) - 32 lusin
= (12 x 20 + 2 x 144 + 15 x 12) - (32 x 12)
= ( 240 + 288 + 180) - 384
= 708 - 384
= 324 potong pakaian
Pakaian anak-anak=144×2=288
Pakaian remaja=15×12=180
Sisa pakaian=32×12=384
(240+288+180)-384
=708-384=324.
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