Question

If a single piece of sheet of paper is .0125 cm thick, how thick is the last 6-fold wad of paper

Answer 1

 1st fold thickness : (2 x 0.0125) = 0.025 
2nd fold : (2 x 0.025) = 0.05 
3rd fold : (2 x 0.05) = 0.10 
4th fold : (2 x 0.10) = 0.20 
5th fold : (2 x 0.20) = 0.40 
6th fold : (2 x 0.40) = 0.80