Iterating over rows and columns with nested loops — IITM BS previous year questions

Iterating over rows and columns with nested loops is part of Tables - 2-D Data Representation, Week 6 in Computational Thinking. Prasnya files every IIT Madras BS previous year question from this subtopic here, each one with a worked explanation. Take the whole set as a timed mock and you get accuracy, pacing and per-question analysis back.