pak hamid menjual sepeda motor seharga Rp 10.800.000,00 dengan kerugian 10%. harga pembelian motor pak hamid adalah?

Harga beli = 10800000 : (100% - 10%)
= 10800000 : 90%
= 10800000 : (90/100)
= 10800000 x (100/90)
= 1080000000 / 90
= 12000000

[tex] \frac{100\%}{90\%} \times 10.800.000 = 100 \times 120.000 = 12.000.000[/tex]