0.75 lusin + 4/5 kodi + 3/20 rim = .... Buah

[tex]0.75 \: lusin \: + \frac{4}{5} \: kodi + \frac{3}{20} \: rim \\ \frac{75}{100} \times 12 + \frac{4}{5} \times 20 + \frac{3}{20} \times 500 \\ 9 + 16 + 75 \\ 100 \: buah[/tex]

[tex] \frac{75}{100} \times 12 = 9 \\ \frac{4}{5} \times 20 = 16 \\ \frac{3}{20} \times 500 = 75 \\ 9 + 16 + 75 = 100[/tex]
jawabannya 100