An irreversible reaction A + B → C is first-order in both A and B. In a solution with [A]0 = 0.20 M, — Kinetics Chemistry Question

An irreversible reaction A + B → C is first-order in both A and B. In a solution with [A]0 = 0.20 M, it takes 37 s for the concentration of B to decrease from its initial value of 0.010 M to 0.0050 M. How long will it take the concentration of B to decrease from an initial value of 0.010 M to 0.0050 M if the initial concentration of A is 0.010 M?