Penjelasan dengan langkah-langkah:
10 buku = 20.000
100 buku = 20 × 10 = 200.000
nah, untungnya
= 200.000 - 180.000
= 20.000
%untung :
= 20.000/180.000 × 100%
= 2/18 × 100%
= 1/9 × 100%
= 100/9
= 11,11
= 11 1/9% (b)
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Penjelasan dengan langkah-langkah:
10 buku = 20.000
100 buku = 20 × 10 = 200.000
nah, untungnya
= 200.000 - 180.000
= 20.000
%untung :
= 20.000/180.000 × 100%
= 2/18 × 100%
= 1/9 × 100%
= 100/9
= 11,11
= 11 1/9% (b)