Answer:
1 to 1000
Step-by-step explanation:
Since, we know that,
1 meter = 10 decimeter,
⇒ Decimeter in 100 meter = 100 × decimeter in 1 meter = 1000,
In the scale,
1 decimeter represents 100 meter,
So,
[tex]\text{Scale ratio}=\frac{\text{1 decimeter}}{\text{100 meter}}[/tex]
[tex]=\frac{\text{1 decimeter}}{\text{1000 decimeter}}[/tex]
[tex]=\frac{1}{1000}[/tex]
