#1622 · Algebra · Exponentials & logarithms
Doubling time at compound interest
In how many years will a sum of money double itself at 5 per cent. compound interest?
H. S. Hall & S. R. Knight, Higher Algebra (1891) · Ch. XVIII. Interest and Annuities, Examples XVIII.a, No. 3
Stuck? A gentle nudge
Your answer
Loading the math keyboard…
Type naturally — sqrt, pi, / and ^ become notation. Any equivalent form is accepted. Press Enter to check.
Checked against the answer in H. S. Hall & S. R. Knight, Higher Algebra (1891).