EPSO Numerical Reasoning case studies

The EPSO numerical reasoning test is the numerical component of the computer-based reasoning battery used in European Personnel Selection Office (EPSO) competitions to build reserve lists for the EU institutions. It is aimed at graduates applying for administrator (AD) or assistant (AST) profiles, and at specialists whose competition includes a reasoning battery. Questions present numerical data inside the question itself - a short text, a table or a simple chart - and ask for a single best answer from fixed options. The emphasis is on practical arithmetic under time pressure: percentages and percentage change, ratios and scaling, weighted averages, rates and time, estimation, table interpretation, work and production rates, budget arithmetic, and a small share of probability and data-sufficiency items. Topics on this exam: Percentage calculations and percentage change, Ratios, proportions and scaling, Averages, weighted averages and combined groups, Rates, speed, distance and time, Fractions, decimals and order-of-magnitude estimation, Table and chart interpretation (absolute vs relative values), Work rates, production and resource allocation, Financial and budget arithmetic (costs, revenue, indexation), Probability, combinatorics and simple counting, and Data sufficiency and logical validation of numerical statements. The EPSO Numerical Reasoning case studies are 5 cases and about 2,516 words.