A disease has a prevalence of 1 in 1000 in the general population. A diagnostic kit for the disease has 10% false positi
quantitative reasoning analysis shows ratio, percentage and series logic determine correct calculation. Consequently 99% 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.
