In his garage, avid collector Pete has 200 types of tire, which he has arranged in seven piles.
Using the clues below, work out how many tires are in each pile.
Pile 1 + Pile 2 = 57 tires
Pile 2 + Pile 3 = 83 tires
Pile 3 + Pile 4 = 71 tires
Pile 4 + Pile 5 = 43 tires
Pile 5 + Pile 6 = 66 tires
Pile 6 + Pile 7 = 43 tires
Answer: This teaser proved popular with a good number of readers correctly answering: P1 contains 31 tires, P2 contains 26, P3 contains 57, P4 contains 14, P5 contains 29, P6 contains 37 and P7 contains 6 tires. Well done in order of reply to: Mirco Niklas, Process Technology, Freudenberg Technology Innovation SE & Co. KG Corporate R&D, Weinheim, Germany; Michele Girardi, Scame Mastaf Spa, Suisio, Italy; Andrew Knox, Rubbond International, Ohé en Laak, The Netherlands; Ramasubramanian P, manager, marketing – mixer and LTKMPL products, rubber processing machinery, Larsen & Toubro Ltd, Vedal Village, Kanchipuram, Tamil Nadu, India; Jose Padron, material development specialist, Waterville TG Inc., Waterville, Québec; David Mann, key account manager, SPC Rubber Compounding, UK; Stephan Paischer, head of product management special products, Semperit AG Holding, Vienna, Austria; Michael Easton, sales and marketing director, Globus Group, Manchester, UK. John Bowen, consultant, Bromsgrove, UK; Paul Knutson, textile engineer, Timken Belts, Springfield, Missouri, USA; Steve Wymark, technical manager, Fenner Dunlop Engineered Conveyor Solutions, Marfleet, Hull, UK; Daniel Willrich, redakteur, AutoRäderReifen-Gummibereifung, Hannover, Germany; Lionel Lesage, KSB (no other details supplied) Pushkar Raj Singh Shaktawat, ADM – OHP, Transportation, L&T Technology Services Ltd, Baroda, Gujarat, India.