What is the scale of a map if 50 km in real distance is 2 dm on a map, I need a ratio answer, (EX: 1:500000)

1:25 (dm:km)

Step-by-step explanation:

For the ratio, you compare two units.

Naturally, we could say that 2 dm corresponds to 50 km

Written in fraction form:

2dm/50km

Simply the fraction normally:

1dm/25km

Just replace the "/" with ":"

1:25 (dm:km)