12. What is the average number of pupils dewormed from 2010 to 2015?
A. 950 B. 1000 C. 1050
D. 1100
13. If there is a total of 300 pupils in grade V, how many pupils were not
dewormed in 2013?
A. 120
B. 125
C. 130
D. 135
14. What is the difference in the number of grade five pupils dewormed in 2010 to 2015?
A. 50
B. 80
C. 90
D. 100
15. Which year had the greatest number of grade five pupils dewormed?
A. 2012
B. 2013
C. 2014
D. 2015