Determine the scale of the plan if the road 5 km long on it is equal to a segment of 10 cm.

To complete this task, you need to find out how many kilometers 1 centimeter of the map contains. To do this, we take the required value for x (x), we draw up an equation with one unknown proportion method.

10 cm – 5 km or 5000m, or 500,000 cm

1 cm – x km, multiply crosswise.

We get 10x = 500,000, from here we find

x = 500,000: 10 = 50,000 cm

Plan scale 1: 50,000 (one fifty thousandth)