Question

A 1/16 scale model (1 in. =16ft) of an airplane has a wingspan of 21 in. What is the wingspan of the actual airplane in feet?

Answer 1

The scale is given as

1 in = 16 ft

using this scale

1 in = 16 ft-----change this to inches

1 : 192 ---------for actual inch : inch

so for 21 in , this will be;

1= 192

21= ?

21 * 192 = 4032 in

Actual span will be 4032 inches or 336 ft