Question

if a building model is scaled down to 1/50th of the actual size, what is the scale factor?
a. $\frac{1}{100}$
b. $\frac{1}{50}$
c. $\frac{1}{20}$
d. $\frac{1}{10}$

Explanation:

Step1: Understand scale - factor concept

The scale - factor is the ratio of the size of the model to the size of the actual object.

Step2: Identify given ratio

It is given that the building model is scaled down to $\frac{1}{50}$th of the actual size. So the scale - factor is $\frac{1}{50}$.

Answer:

B. $\frac{1}{50}$