A computer drawing was enlarged usinf a scale factor of 250%. What scale factor is required if the drawing is now to be reduced to its original size?

Question

A computer drawing was enlarged using a scale factor of 250%. What scale factor is required if the drawing is now to be reduced to its original size?

Answer 1

Let's pick a number, like 100. 100(2.5) = 250.

 

How to get back to 100?

 

100/250 = 2/5 = 40%