Harga 4 buah buku Rp16.000 Berapakah harga 2 setengah lusin buku

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Harga 4 buah buku Rp16.000 Berapakah harga 2 setengah lusin buku​

 

Jawaban:

16000/4 = 4000

2½ lusin = 2,5×12= 30 buah

30x 4000=120000


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