[spoiler=My answers]I calculated that if the group of 25 zombies attacks first, there will be 17 left, and if the group of 20 zombies attacks first, there will be 13 left in the larger group. Neither of these values is correct.[/spoiler]
[spoiler=My answers]I calculated that if the group of 25 zombies attacks first, there will be 17 left, and if the group of 20 zombies attacks first, there will be 13 left in the larger group. Neither of these values is correct.[/spoiler]