Chemistry - Chemical Kinetics Question with Solution | TestHub

A flask is filled with equal moles of$\mathrm{A}$and$\mathrm{B}$. The half lives of$\mathrm{A}$and$\mathrm{B}$are$100 \mathrm{s}$and$50 \mathrm{s}$respectively and are independent of the initial concentration. The time required for the concentration of$\mathrm{A}$to be four times that of$\mathrm{B}$is____$\mathrm{s}$.
(Given :$\ln 2=0.693$)