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

Puzzles and Curious Problems by Henry Ernest Dudeney: $344$

Coin and Hole

We have before us a specimen of every coin which was current in Britain in $1930$.

And we have a sheet of paper with a circular hole cut in it $\tfrac 3 4$ of an inch in diameter.

What is the largest coin I can pass through that hole without tearing the paper?

Sources

• 1932: Henry Ernest Dudeney: Puzzles and Curious Problems ... (previous) ... (next): Unclassified Problems: $344$. -- Coin and Hole
• 1968: Henry Ernest Dudeney: 536 Puzzles & Curious Problems ... (previous) ... (next): Unclassified Puzzles: $527$. Coin and Hole