Question

Jawab no 10 aja y..Plis

Answer 1

2.25 Kuintal = 2.25*100= 225 kg
2 4/5 Kuintal =2.8*100 =280 kg
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Beras Campuran = 225+280 = 505 Kg.
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80% * 505
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=404 Kg yang terjual.
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Tersisa = Beras Campuran - Beras Terjual
            = 505 Kg - 404 Kg
            =101 Kg tersisa.
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atau cara cepat = 
Total beras campuran = 100%
Terjual                       =   80%
Maka, tersisa             = 100%-80%=20%

Jadi 20% * 505 Kg
= 101 Kg

Answer 2

= (2,25 + 2 4/5) x (100%-80%)
= (2,25 + 2,8) x 20%
= 5,05 x 20%
= 1,01 kwintal
= 101 kg

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