Worked problems: word arrangements, circular seating — IITM BS previous year questions

Worked problems: word arrangements, circular seating is part of Permutations - Applications and Extensions (L5.4 - L5.5), Week 5 in Statistics 1. 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.