Chemical Equilibrium

At $T(\mathrm{~K})$, the equilibrium constant for $A(g) \rightleftharpoons B(g)$ is $10^{-2}$. If rate of forward reaction is $0.025 \mathrm{~mol} \mathrm{~L}^{-1} \mathrm{~s}^{-1}$. The rate of backward reaction (in $\mathrm{mol} \mathrm{L}^{-1} \mathrm{~s}^{-1}$ ) is