Answer:
11 years is the required answer.
Explanation:
[tex]A=P(1+\frac{r}{n})^{n\cdot t}[/tex] is the formula for compound interest.
Where, r is the interest rate in decimals and n is the number of times interest is compounded anually. Putting the values, we get:
[tex]2\times 5000=5000\left(1+\frac{0.065}{1}\right)^{1\times t}\\\\\Rightarrow t=11\:years[/tex]
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