Answer:
#20- 22 students
Step-by-step explanation:
1/4 of 40= 10
1/5 of 40= 8
8+10=18
40-18=22
22 students
For #20, the answer is 22 students
1/4 of 40 is ten, because 40/4 is ten.
1/5 of 40 is eight, because 40/5 is eight.
So 40 minus 10 + 8 = 22
