#1635 · Algebra · Sequences & series
Perpetual and Term Annuities
If a perpetual annuity is worth 20 years' purchase, find the annuity to continue for 3 years which can be purchased for £2522.
H. S. Hall & S. R. Knight, Higher Algebra (1891) · Ch. XVIII. Interest and Annuities, Examples XVIII.b, No. 7
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Checked against the answer in H. S. Hall & S. R. Knight, Higher Algebra (1891).