Cryptarithmetic (unique-digit letter substitution) — CAT previous year questions

Cryptarithmetic (unique-digit letter substitution) is part of Quantitative Reasoning, Advanced / Hybrid DILR in Data Interpretation & Logical Reasoning. Prasnya files every CAT previous year question from this concept here, each one with a worked explanation. Take the whole set as a timed CAT mock and you get accuracy, pacing and per-question analysis back.