Ratio, SM-Bank 033 MC

Two places are 5.4 cm apart on a map.

On the map 1 cm represents 4 km.

What is the actual distance between the two places?

1. \(1.08\ \text{km}\)
2. \(10.8\ \text{km}\)
3. \(21.6\ \text{km}\)
4. \(43.4\ \text{km}\)