C. 1097. A motorcycle has brand new tyres on both wheels. A tyre is considered worn if it has run 15 000 km on the rear wheel or 25 000 km on the front wheel. What is the maximum possible number of kilometres that the motorcycle can run until the tyres become worn if the front and rear tyres are interchanged at the appropriate time?

(5 points)

Deadline expired.

Statistics on problem C. 1097. 312 students sent a solution. 5 points: 198 students. 4 points: 67 students. 3 points: 14 students. 2 points: 7 students. 1 point: 11 students. 0 point: 12 students. Unfair, not evaluated: 3 solutions.