Di KetahuiHarga 1per2 liter minyakgoreng Rp.6.500,00.Jika ibu membeli 5 liter minyak goreng maka braparupiahibu harus membayar

5/(1/2) = n/6.500
1/2 x n = 5 x 6.500
1/2 x n = 32.500
n = 32.500 : 1/2
n = 32.500 x 2/1
n = 65.000 rupiah

1/2 liter = 6500
1 liter = 6500 x 2 = 13000
5 liter = 13000 x 5 = 65000