Nivaar worked solution (AI-drafted; not reviewed by a licensed engineer)
04-BS-16 Discrete Mathematics — December 2015 sitting. 12 questions, 10 marks each (answer 10 of 12 per the paper; every question is solved here as a full study resource).
Reference texts: Rosen, Discrete Mathematics and Its Applications, 7th ed. (primary); Stewart, Calculus: Early Transcendentals, 9th ed. (for the calculus argument in Question 7).