A company has designed a cylindrical tube to ship documents. To incredible the size of the tube they extended every dimension by one third of its original length After the tube is enlarged?

You mean that every dimension is increased by 1/3, what is the change in volume?

Original tube

V = pi * r^2 * h

New Tube

V = pi * [ (1 + 1/3) r]^2 * (1 + 1/3) * h

V = pi * (4/3) ^2 r^2 * (4/3) * h

V = pi * (4/3) ^3 r^*h

The new Tube has increased in volume by a factor of (4/3) ^3 = 64/27 or approximately 2.03 times