Question

A boy makes a diagram of a plane to scale of 1/400 of actual size. If the diagram of the plane is 9.6 inches in length. What is the length, in feet, of the plane?

Answer 1

The plane will be 400 times smaller than real on the paper.
length of plane on paper=9.6 inches
length of plane in real=9.6*400 inches=3840
1 feet=12inches
length of plane in real in feet=3840/12
=320 feet
Hope its helpful

Answer 2

The plane will be 400 times smaller than real on the paper.
length of plane on paper=9.6 inches
length of plane in real=9.6*400 inches=3840
1 feet=12inches
length of plane in real in feet=3840/12
=320 feet