Answer:
each student must make 5 posters in one hour
Explanation:
The equitable thing is that each student makes an equal number of posters at the established time, knowing that there must be 60 posters and there are 12 students, these numbers must be divided so we will have the same amount for each student:
60/12 = 5
Which means that each student must make 5 posters in one hour so that everything turns out well