To have an overall yield of greater than 50% in a three step purification process for a food additive, the minimum avera
quantitative reasoning analysis shows ratio, percentage and series logic determine correct calculation. Consequently 80 emerges as the valid choice since it meets mathematical and logical criteria, aligning with established principles in aptitude and reasoning literature.
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.
