DILR (Data Interpretation and Logical Reasoning) is the biggest differentiator in CAT. Our data shows the gap between 95th and 99th percentile aspirants is almost entirely DILR performance, not QA or VARC. Yet most aspirants practice DILR the least because the questions are harder and more time-consuming. WHY MBA 360 has 207 Data Interpretation and 183 Logical Reasoning questions — 390 total — all with IRT adaptive scoring. The engine pushes you into your weak DI and LR subtopics rather than letting you stay comfortable in areas you already know. Your DI theta and LR theta are tracked separately so you can see exactly where the weakness lies. DILR questions in duels are excluded from graph-based sets since those require visual interpretation. For pure analytical DILR practice with adaptive difficulty, this is the most comprehensive free resource available.