jika kota A terdapat jumlah kendaraan sebanyak 1.200 maka banyak becak adalah

Sepeda = 30%
Motor = 20%
Mobil = 15%

Becak =
=100% - (30%+20%+15%)
=100% - 65%
=35%

Jumlah becak =
[tex] \frac{35}{100} \times 1200[/tex]
= 420 becak