Chemical Kinetics · First order reaction time

An organic compound undergoes first order decomposition. The times taken for decomposition to $\left(\dfrac{1}{8}\right)^{\mathrm{th}}$ and $\left(\dfrac{1}{10}\right)^{\mathrm{th}}$ of its initial concentration are $t_{1/8}$ and $t_{1/10}$ respectively.

What is the value of $\dfrac{t_{1/8}}{t_{1/10}}\times 10$ ?

($\log 2 = 0.3$)