A map has a scale 1cm represents 2500000 cm. Determine the actual distance that is represented by 2.3 cm on the map, giving your answer in kilometres.

Kipimo = $1 \text{ cm}$ inawakilisha $2,500,000 \text{ cm}$
Urefu kwenye ramani = $2.3 \text{ cm}$

Umbali halisi (katika cm) = Urefu kwenye ramani $\times$ Thamani ya kipimo
Umbali halisi = $2.3 \text{ cm} \times 2,500,000 \frac{\text{cm}}{\text{cm}}$
Umbali halisi = $5,750,000 \text{ cm}$

Tunajua kuwa $1 \text{ m} = 100 \text{ cm}$ na $1 \text{ km} = 1000 \text{ m}$.
Hivyo, $1 \text{ km} = 1000 \text{ m} \times 100 \frac{\text{cm}}{\text{m}} = 100,000 \text{ cm}$.
Ili kubadilisha cm kwenda km, tunagawanya kwa 100,000.
Umbali halisi (katika km) = $\frac{5,750,000 \text{ cm}}{100,000 \frac{\text{cm}}{\text{km}}}$
Umbali halisi = $57.5 \text{ km}$