← CombinatoricsCombinatorics 027 — ZAP 2025, Exercise 3: Till coinsCombinatoricsZAP 2025MediumYour answerWrite your answer, then compare it with the solution.Reveal solutionStuck? Show me one stepRelated exercisesSimilarZAP 2009, Exercise 4 — Combinations of lilies and roses totalling Fr. 75Combinatorics 036 — ZAP 2017, Exercise 8Combinatorics 037 — ZAP 2016, Exercise 5Combinatorics 010 — A pizza with three toppings