The logistic equation for growth of a bacterial culture is given by Where X and Xo are biomass concentration, k and beta
The principle of quantitative reasoning explains that ratio, percentage and series logic determine correct calculation. Hence Exponential fits best because it meets mathematical and logical criteria, as documented in authoritative sources on aptitude and reasoning.
Ref: Agrawal, Quantitative Aptitude for Competitive Examinations, Chapter 5, Logical Reasoning and Probability, covers ratios, percentages, series completion, time-distance and analytical reasoning explaining problem-solving strategies for competitive assessments.
