Answer:
1 cm : 10.5 km
Step-by-step explanation:
We are given that two towns are 31.5 km in real and are 3 cm apart on a map and we are to find the scale of the map.
For this, we can use the ratio method.
[tex] \frac { 3 cm } { 1 c m } = \frac { 3 1 . 5 k m } { x } [/tex]
[tex] x = \frac { 3 1 . 5 \times 1 } { 3 } [/tex]
[tex] x = 1 0 . 5 [/tex]
Therefore, the scale of the map would be 1 cm : 10.5 km.
