seorang pedagang membeli dua macam beras masing masing sebanyak 60 kg dgn harga 7.200 per kg dan 40 kg dgn harga 7.600. kemudian kedua jenis beras tersebut di c

Beras jenis 1 = A
Beras jenis 2 = B

A = 60kg (7.200/kg)
B = 40kg (7.600/kg)

A = 60 × 7.200
= 432.000
B = 40 × 7.600
= 304.000

Dicampur:
432.000 + 304.000
= 736.000 (100kg)

Dijual 7.800/kg

(a.) Untung
Total 100 kg beras
100 kg beras = 736.000
1 kg = 736.000 ÷ 100
1 kg = 7.360
7.800 - 7.360 = 440

(b.) Persentase Untung
100% = 7.360
x = 7.800

7.360x = 7.800 × 100
7.360x = 780.000
x = 780.000 / 7.360
x = 105.97%

Untung = 105.97% - 100%
= 5.97%

Sori yah kalo salah