bonjour, voici ma réponse:
3 tours => 2580m
5 tours => 4300m
8 tours => 5 tours + 3 tours => 4300 + 2580 = 6880m
2 tours => 5 tours - 3 tours => 4300 - 2580 = 2420m
7 tours => 5 tours + 2 tours => 4300 + 2420 = 6720m
10 tours => 5 tours + 5 tours = 4300 + 4300 = 8600m
1 tours = 8 tours - 7 tours = 6880 - 6720 = 160m