Answer:
We can use the given scale to find the actual length of the old wagon.
The scale tells us that 5 cm on the model represents 2 m in real life. We can set up a proportion to find the actual length of the old wagon:
5 cm on model / 2 m in real life = 48 cm on model / x actual length
To solve for x, we can cross-multiply and simplify:
5 cm * x actual length = 48 cm * 2 m
x actual length = (48 cm * 2 m) / 5 cm
x actual length = 96 m / 5
x actual length = 19.2 m
Therefore, the actual length of the old wagon is 19.2 meters.