Question

When you divide A4 in half,you get two A5 sheets.If you furthur divide those A5 sheets in half,you get four A6 sheets.Till which a series paper should you divide so that every persons on earth can get one piece if you start from A4?
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Answer 1

Answer:

if you make 1 cut you get 2 pieces and they are A5

if you make 2 cuts you get 4 pieces and they are A6

if you make n cuts you get 2^n pieces and they are A(N+4)

2^33 is 8.6 billion

So 33 cuts will give you 8.6 billion pieces and they are A37 size each.

However the logistics of sharing those tiny bits of paper is a bigger problem