Question 20
At least how many pieces can be obtained by cutting a cake 4 times?
Editorial cutting convention: use four effective straight cuts through an unstacked cake, leaving the pieces in place. Each cut splits at least one existing piece and does not merely retrace an old cut. The source leaves these cutting conditions unstated.
Editorial cutting convention: use four effective straight cuts through an unstacked cake, leaving the pieces in place. Each cut splits at least one existing piece and does not merely retrace an old cut. The source leaves these cutting conditions unstated.