Henry Ernest Dudeney/Puzzles and Curious Problems/344 - Coin and Hole/Solution

by : $344$

 * Coin and Hole

Solution

 * Strange thought it may appear, the half-crown may be passed through the small hole (about the size of a sixpence) without tearing the paper.
 * This is the largest coin that can be used.
 * First fold the paper across the centre of the hole and drop the coin into the fold.


 * Dudeney-Puzzles-and-Curious-Problems-344-solution.png


 * Then, holding the paper at $A$ and $B$, bring the hands together upwards, and the coin may be shaken through the hole.