Question

A toy car was created using a scale factor of 1:12. If the wheels on the actual car are 16 inches, what are they on the model car

Answer 1

The wheels are 1.33 inches on model car

Solution:

Given that,

A toy car was created using a scale factor of 1 : 12

Wheels on the actual car are 16 inches

To find: Wheels of car on model

Let "x" be the wheels of car on model

Scale factor is 1 : 12

1 : 12

x : 16

Thus we get a proportion as,

$\frac{1}{12} = \frac{x}{16}$

Cross multiply to get value of "x"

$1 \times 16 = x \times 12\\\\16 = 12x\\\\x = \frac{16}{12}\\\\x = 1.33$

Thus the wheels are 1.33 inches on model car