Lemma
MediumDiophantine equations
#1775 · Number Theory · Diophantine equations

Paying an Amount in Coins

In how many ways can £1. 19s. 6d. be paid in florins and half-crowns?

~8 minAnswer checked instantlylinear diophantine equationspositive integer solutions

H. S. Hall & S. R. Knight, Higher Algebra (1891) · Ch. XXVI. Indeterminate Equations of the First Degree, Examples XXVI, No. 4

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Checked against the answer in H. S. Hall & S. R. Knight, Higher Algebra (1891).