HomeMessagesBrain TeasersBrain Teaser SMSBrain Teaser SMSBrain Teaser SMS Brain Teaser SMS No Comments What four weights can be used to balance from 1 to 30 pounds? Answer:A=1, B=3, C=9 and D=171lb = A 2lbs + A = B 3lbs = C 4lbs = A + B 5lbs + A + B = C 6lbs + B = C etc READ MORE: Brain Teaser SMS Share You Comments & Feedback Cancel reply This site uses Akismet to reduce spam. Learn how your comment data is processed.