Chemical Kinetics

For the reaction, $A + B \rightarrow P$, the rate law is rate $= k[A][B]^2$. The rate of reaction is $0.25 \text{ Ms}^{-1}$ when $[A] = 1$ M, $[B] = 0.2$ M at $25^\circ$C. Calculate the rate constant of the reaction at the same temperature.