Answer:
Initial Labour productivity = 6.67 students / hour
New Labour productivity = 10 students / hour
Change in labour productivity = 3.33 students / hour increase
Explanation:
5 classes of an hour each, 3 days a week. So, teaching hours : 5 x 3 = 15
Number of students: 20 students per class. So, total students = 20 x 5 = 100
Labour Productivity : Students / Hour = 100 / 15 = 6.67 students
3 classes of an hour each, 5 days a week. So, teaching hours = 3 x 5 = 15
Number of students: 50 students per class. So, total students = 3 x 50 = 150
Labour productivity : Student / Hour = 150 / 15 = 10 students
10 - 6.67 = 3.33 students