Question

A student is making a scale model of his 30 foot long house and his scale model is 15 inches long. What is the scale factor?

Answer 1

24

Explanation:

15 inches represent 30 feet = 30*12 inches = 360 inches

so 1 inch represent 360/15 = 24 inches

the scale factor is 24

Answer 2

3.6/30 = 1/x

30/3.6 = 8.3333

1 inch = 8 1/3 feet