Tolong ya kak pake caranya

Please, let me answer your question :)
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[tex] 7\frac{1}{2} = \frac{15 \times 5}{2 \times 5} = \frac{75}{10} = 7.5[/tex]

12,5 + 7,5 = 20

[tex]20 \times \frac{20}{100} = 20 \times 0.2 = 4[/tex]

20-4 = 16 kg

Jadi jawabannya yg D 16 Kg.

Saya minta maaf atas kesalahan yg dibuat.
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Hopefully this is the best for you :)

★ Anti Copas-Copas Club ★

7 1/2 = 15 /2 x 5= 75/10 =7,5 + 12,5 = 20
20 x 20 / 100 = 1 x 4 = 4 kg = 20 -4 =16 kg =D.16 kg..
Semoga Membantu..