(related to Problem: A Shopping Perplexity)

The first purchase amounted to $1$s. $5\frac 34$d., the second to $1$s. $11\frac 12$d., and together they make $3$s. $5\frac 14$d. Not one of these three amounts can be paid in fewer than six current coins of the realm.

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Project Gutenberg

  1. Dudeney, H. E.: "Amusements in Mathematics", The Authors' Club, 1917

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