i have just 10min please solve

Question 3 (1 points out of 5) For the 3 parallel equal-volume reactors shown in the figure below, in which the same reaction runs and which are run at the same conditions, while the feed molar flow rate and feed concentration of A for each degree of conversion for the one big reactor is 80% as the degree of conversion achieved by each reactor. volume necessary for replacing all the above 3 reactors with only one reactor of the same type, so that the The liquid-phase reaction taking place is: AC+D and is a first-order reaction with k-2.5 min Rq X Re X2 of R2 X3