Jessica would like to make a small notebook from A4 paper. She cut it into 4 and then sew the pieces together. If she has 40 sheets of A4 paper, how thick is the notebook?

Pls tell the answer and show working out

1 answer

No idea. how thick are the pages?
40 pieces of paper
4 sheets per piece
each sheet has two pages (front and back)
so, ...