Question

a compact disk of thickness 1.2 mm is wrapped once with 0.0025 mm thick cellophane paper. what is the thickness of the package?

exponents and power ​

Answer 1

Given,

The thickness of the compact disk = 1.2 mm

The thickness of the cellophane paper = 0.0025 mm

The cellophane paper is wrapped for once.

To find,

The thickness of the package.

Solution,

The cellophane paper is wrapped around the compact disk for one time. So,a single layer of cellophane paper will be on the both side of the compact disk.

So,the thickness of the final package

= Thickness of compact disk + 2×thickness of the cellophane paper

= 1.2 + (0.0025×2)

= 1.2 + 0.005

= 1.205 mm

Hence,the thickness of the package is 1.205 mm.