Step-by-step explanation: So, she took 2 from each of the volunteers, and there were 5 volunteers in total. What I did, was I found out how many people were taken in total and given to the teachers, which was 10 (2*5), and then I added it to the total number of flyers still with the volunteers (40), which equals 50. Divide that by 5 (number of groups) and you get 10.