Writing reusable, readable, and maintainable code — IITM BS previous year questions

Writing reusable, readable, and maintainable code is part of Code Reuse and Main Program Design, Week 11 in Programming in Python. 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.