Question

Ron measured an apartment and made a scale drawing. The dining room, which is 3 meters long in real life, is 1 centimeter long in the drawing. What scale factor does the drawing use?

Answer 1

300 to 1.

Explanation:

A centimeter is one hundredth of a meter (hence the "centi" part) So by changing the meters value into that of the hundreds, you'll get your scale factor, the same applies things like millimeters and kilometers, with the only exception being that you'd have to adjust the numbers, for higher or lower.