A system consists of two types of gas molecules A and B having same number density 2 × 10^25 / m^3. The diameter of A and B are 10 and 5…

A system consists of two types of gas molecules A and B having same number density $\displaystyle 2 \times 10^{25} / \mathrm{m}^3$. The diameter of A and B are $\displaystyle 10 \AA$ and $\displaystyle 5 \AA$ respectively. They suffer collision at room temperature. The ratio of average distance covered by the molecule $\displaystyle A$ to that of $\displaystyle B$ between two successive collision is \_\_\_\_ $\displaystyle \times 10^{-2}$.