Question

in how many years will a sum of money double itself at a 10% p.a interest? ​

Answer 1

Answer:

Let The sum Be::-

$100+(100×N× \frac{10}{100} ) = 200$

Where N is Period in Years

$100 + 10{n} \\ 10n = 100 \\ n = 10 \\ sum \: double \: in \: 10 \: years$