Consistent, inconsistent, unique, and infinitely many solutions — IITM BS previous year questions

Consistent, inconsistent, unique, and infinitely many solutions is part of Systems of Linear Equations, Week 1 in Mathematics 2. 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.