6 classes (1)6 classes (2)6 classes (3) Total number of students 40 42 43 125 Number of waste batteries collected 360 2 10 430 1000 (2) Number of waste batteries collected in each class 6 classes (/kloc-0
The average number of waste batteries collected by each person in class six (2): 2 10÷42=5 (knots),
The average number of waste batteries collected by each person in Class 6 (3): 430÷43= 10 (knots),
Because 10 > 9 > 5,
Therefore, the average person in Class 6 (3) collected the most waste batteries;
Answer: Everyone in Class 6 (3) collects the most waste batteries.
(3) 1.5×( 1000÷ 125)
= 1.5×8
= 12 (ten thousand knots),
A: A total of 6.5438+200,000 used batteries can be collected in one year.