The scale factor required will be 1:60 or 60:1 (actual:movie or movie:actual).
What is a scale factor?
The scale factor is the simplest ratio between the actual and the model's size of the same object.
How to solve the question?
In the question, we are informed that in a movie, a child who was 32 inches tall was ''blown up'' to be 160 feet tall.
We are asked to determine the scale factor needed for the props in the movie.
To find the scale factor, we first find the size of the child in the movie in inches.
Size = 160 feet = 160*12 inches = 1920 inches.
Now, the scale factor is calculated as the ratio of the actual size to the size in the movie, that is,
Scale factor = 32:1920 = 32/1920 = 1:60.
Therefore, the scale factor required will be 1:60 or 60:1 (actual:movie or movie:actual).
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