Puzzle | Car Wheel Puzzle Last Updated : 11 Aug, 2025 Comments Improve Suggest changes 137 Likes Like Report A car is equipped with 4 tyres and 1 spare tyre.Each tyre can last for a maximum of 20,000 km before it wears out.You may swap tyres with the spare as many times as you want during the journey. What is the maximum distance the car can travel before buying a new tyre?Check if you were right - full answer with solution below.Answer: 25000 kmsSolution: Divide the lifetime of the spare tyre into 4 equal part i.e., 5000 and swap it at each completion of 5000 km distance. Let four tyres be named as A, B, C and D and spare tyre be S. 5000 KMs: Replace A with S. Remaining distances (A, B, C, D, S) : 15000, 15000, 15000, 15000, 20000. 10000 KMs: Put A back to its original position and replace B with S. Remaining distances (A, B, C, D, S) : 15000, 10000, 10000, 10000, 15000. 15000 KMs: Put B back to its original position and replace C with S. Remaining distances (A, B, C, D, S) : 10000, 10000, 5000, 5000, 10000. 20000 KMs: Put C back to its original position and replace D with S. Remaining distances (A, B, C, D, S) : 5000, 5000, 5000, 0, 5000. 25000 KMs: Every tyre is now worn out completely. All tyres are used to their full strength. Create Quiz Comment K kartik Follow 137 Improve K kartik Follow 137 Improve Article Tags : Aptitude Analytical Mathematical Puzzles MakeMyTrip Explore Aptitude Questions and Answers 3 min read Quantitative AptitudeNumbers 12 min read Ages 5 min read Profit and Loss 6 min read Average - Solved Questions and Answers 6 min read Time Speed Distance 7 min read Logical ReasoningNumber Series 5 min read Statement and Argument 3 min read Alphanumeric Series 5 min read Theme Detection - Solved Questions and Answers 6 min read Letter Series 2 min read Verbal ReasoningDirection Sense 4 min read Verbal Analogies 2 min read Venn Diagrams 2 min read Blood Relation 5 min read Course of Action 2 min read Verbal AbilitySynonyms 1 min read Idioms and Phrases 5 min read Change of Speech 3 min read Cloze Test 3 min read Change of Voice 5 min read One Word Substitutes 3 min read Non-Verbal ReasoningMirror Image: Verbal Reasoning 5 min read Embedded Images 2 min read Pattern Completion 2 min read Non Verbal Reasoning : Paper Folding 6 min read Cubes and Dice Reasoning Questions: Practices, Tricks(PDF Download) 6 min read Picture Analogies Questions - Non Verbal Reasoning 4 min read PracticeOnline Aptitude Test: For Jobs, Placements, and More 5 min read Like